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WO2010013857A1 - Steel plate structure and steel plate concrete wall - Google Patents

Steel plate structure and steel plate concrete wall Download PDF

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Publication number
WO2010013857A1
WO2010013857A1 PCT/KR2008/004828 KR2008004828W WO2010013857A1 WO 2010013857 A1 WO2010013857 A1 WO 2010013857A1 KR 2008004828 W KR2008004828 W KR 2008004828W WO 2010013857 A1 WO2010013857 A1 WO 2010013857A1
Authority
WO
WIPO (PCT)
Prior art keywords
steel plate
structural member
steel plates
pair
steel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2008/004828
Other languages
French (fr)
Inventor
Han-Woo Lee
Sang-Hoon Noh
Won-Sang Sun
Geun-Ha Hwang
Kwang-Jae Lee
Dong-Su Park
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KOREA POWER ENGINEERING COMPANY Inc
Korea Hydro and Nuclear Power Co Ltd
Original Assignee
KOREA POWER ENGINEERING COMPANY Inc
Korea Hydro and Nuclear Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KOREA POWER ENGINEERING COMPANY Inc, Korea Hydro and Nuclear Power Co Ltd filed Critical KOREA POWER ENGINEERING COMPANY Inc
Publication of WO2010013857A1 publication Critical patent/WO2010013857A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8635—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties attached to the inner faces of the forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8605—Walls made by casting, pouring, or tamping in situ made in permanent forms without spacers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/14—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements being composed of two or more materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties

Definitions

  • the present invention relates to a steel plate structure and a steel plate concrete wall. More particularly, the present invention relates to a steel plate structure for forming a wall by casting concrete in the steel plate structure and a steel plate concrete wall that is formed by assembling a plurality of steel plate structures, of which each is manufactured as a unit module, and casting concrete on the inside of the plurality of steel plate structures.
  • SC structure steel plate concrete structure
  • the SC structure is made by filling concrete on the inside of steel plates and to provide desirable properties in terms of strength, load-bearing, strain characteristics, workability, etc.
  • the SC structure is made by filling in concrete between two steel plates and arranging studs, tie bars, etc. for keeping the concrete and the steel materials moving together so that the steel plates and concrete may move as an integrated body.
  • the SC structure can be utilized in the construction of large-scale structures, such as nuclear power plants, etc., to reduce the construction period by using modularization.
  • the steel plates may continue to bind the concrete, so that a greater level of load-bearing may be provided. Also, as the concrete is placed on the inside of the steel plates, the concrete can be prevented from deterioration by the external environment so that the durability of the structure may be improved.
  • the steel plates of the unit modules 108 may be welded together to attach the unit modules 108 to one another, or extra plates or couplers may be used in addition to the welding of the steel plates to enhance the adhesion strength between the unit modules 108.
  • the wall having the SC structure may become thicker and be subject to spatial limitation.
  • the thicknesses of the steel plates and concrete may need to be increased.
  • increasing the thickness of the steel plates may entail greater thermal deformation when welding the steel plates together, and may necessitate thermal post-treatment, hi particular, a structure for a skyscraper or a nuclear power plant may have to effectively withstand axial forces caused by the self-weight of the structure as well as lateral forces caused by earthquakes.
  • the concrete within the steel members has low shear strength, the remaining shear stresses that are not borne by the concrete may have to be withstood by the steel plates. Thus, to withstand shear stresses from lateral forces caused by earthquakes, the thickness of the steel plates may have to be increased. Also, when modularizing the conventional steel plate structure and assembling the modules on site to form a wall, the extra plates or couplers for attaching the unit modules may be exposed at the exterior surface to adversely affect the appearance, and theraddition of secondary work may elongate the construction period.
  • An aspect of the present invention provides a steel plate structure for forming a wall by casting concrete therein that includes: a pair of steel plates, which is separated from each other and in which one surface of one of the pair of steel plates faces one surface of the other of the pair of steel plates; a first structural member, which is rigidly joined along a direction of gravity to one surface of the steel plates such that one end of the first structural member is protruded outward from one end of the steel plates and the other end of the first structural member is receded inward from the other end of the steel plates; and a strut, which maintains a separation distance between the pair of steel plates.
  • the first structural member of the steel plate structure can be formed in a pair, and the pair of first structural members can face each other and be rigidly joined to either surface of the pair of steel plates.
  • the strut can be interposed between and coupled to the pair of first structural members.
  • the first structural member and the strut can be H-beams.
  • the steel plate structure can further include a second structural member rigidly joined along a direction of gravity to one surface of the steel plates such that one end of the second structural member is receded inward from one end of the steel plates and the other end of the second structural member is protruded outward from the other end of the steel plates.
  • the steel plate structure can further include a stud protruded outward from one surface of the steel plates.
  • the steel plate structure includes: a pair of steel plates, which is separated from each other and in which one surface of one of the pair of steel plates faces one surface of the other of the pair of steel plates; a first structural member, which is rigidly joined along a direction of gravity to one surface of the steel plates such that one end of the first structural member is protruded outward from one end of the steel plates and the other end of the first structural member is receded inward from the other end of the steel plates; and a strut, which maintains a separation distance between the pair of steel plates.
  • the steel plated structures are disposed above and below, and one end of the first structural member of the steel plate structure disposed above is rigidly joined to one end of the first structural member of the steel plate structure disposed below.
  • the steel plated structure can further include a second structural member rigidly joined along a direction of gravity to one surface of the steel plates such that one end of the second structural member is receded inward from one end of the steel plates and the other end of the second structural member is protruded outward from the other end of the steel plates.
  • the first structural member and the second structural member can be rigidly joined to one surface of at least one of the pair of steel plates, in which the first structural member and the second structural member are adjacent to each other.
  • the first structural member can be formed in a pair, and the second structural member can be formed in a pair; each of the pair of first structural members and each of the pair of second structural members can be rigidly joined to one surface of the pair of steel plates; and the strut can be interposed between and coupled to the pair of first structural members and can be interposed between and coupled to the pair of second structural members.
  • the first structural member, the second structural member and the strut can be H-beams.
  • the steel plated structure can further include a stud protruded outward from one surface of the steel plates.
  • Figure 1 is a perspective view of a steel plate structure before casting concrete in accordance with the related art.
  • Figure 2 is a perspective view of a steel plate structure in accordance with a first disclosed embodiment of the present invention.
  • Figure 3 is a side view of a portion of a steel plate structure in accordance with the first disclosed embodiment of the present invention.
  • Figure 4 is a plan view of a portion of a steel plate structure in accordance with the first disclosed embodiment of the present invention.
  • Figure 5 is a perspective view illustrating steel plate structures coupled together in accordance with the first disclosed embodiment of the present invention.
  • Figure 6 illustrates coupling of structural members in accordance with the first disclosed embodiment of the present invention.
  • Figure 7 is a perspective view of a steel plate structure in accordance with a second disclosed embodiment of the present invention.
  • Figure 8 is a perspective view illustrating steel plate structures coupled together in accordance with the second disclosed embodiment of the present invention.
  • Figure 9 illustrates construction of a steel plate concrete wall in accordance with a third disclosed embodiment of the present invention.
  • Figure 2 is a perspective view of a steel plate structure in accordance with a first disclosed embodiment of the present invention
  • Figure 3 is a side view of a portion of a steel plate structure in accordance with the first disclosed embodiment of the present invention
  • Figure 4 is a plan view of a portion of a steel plate structure in accordance with the first disclosed embodiment of the present invention. Illustrated in Figures 2 to 4 are a steel plate structure 10, steel plates 12, first structural members 14, struts 16 and studs 18.
  • the major components of the present embodiment can include a pair of steel plates 12, which are separated from each other and in which one surface of one of the pair of steel plates 12 faces one surface of the other of the pair of steel plates 12, a first structural member 14, which is rigidly joined along the direction of gravity to one surface of the steel plate such that one end of the first structural member 14 is protruded outward from one end of the steel plate and the other end of the first structural member 14 is receded inward from the other end of the steel plate, and a strut 16, which maintains a separation distance between the pair of steel plates 12.
  • the overall thickness of the steel plate concrete wall can be reduced so as to allow better welding properties and increase in the unit module size.
  • the axial forces or lateral forces acting on the wall can be effectively withstood.
  • the steel plates 12 When the steel plate concrete wall is formed, the steel plates 12 will be integrated with the concrete to withstand the load. Also, the steel plates 12 can keep the concrete inside after the concrete reaches its failure point, to thereby increase the load-bearing capacity of the steel plate concrete wall.
  • the first structural member 14, one end of which is protruded outward from one end of a steel plate 12 and the other end of which is receded inward from the other end of the steel plate 12, is rigidly joined along the direction of gravity to one surface of one of the pair of steel plates 12.
  • the first structural members 14 can withstand the load applied on the steel plate concrete wall, together with the steel plates 12 and concrete.
  • the first structural members 14 can be arranged along the direction of gravity, to withstand the axial forces applied on the steel plate concrete wall, as well as the lateral forces caused by earthquakes, wind, etc. That is, the first structural members 14 can be coupled to one surface of a steel plate 12 in a longitudinal direction of the steel plate concrete wall. Together with the concrete and steel plates of the steel plate structure 10, the first structural members 14 can withstand the loads in the axial direction, as well as shear forces in the lateral direction caused by earthquakes, etc., when the steel plate concrete wall is rigidly joined to the foundation. Moreover, such first structural members 14 can, together with the studs 18, which will be described later, contribute to the integration of the steel plates 12 and the concrete.
  • Methods of rigidly joining the steel plates 12 and the first structural members 14 can include joining the steel plates 12 with the structural members 14 using high-tension bolts or rivets, and welding the structural members 14 to the steel plates 12, so that the structural members 14 can move as an integrated body with the steel plates 12.
  • first structural members 14 can be used for the first structural members 14.
  • This particular embodiment presents an example of using H-beams for the first structural members 14, with the flanges of the H-beams rigidly joined to one surface of a steel plate.
  • the first structural members 14 can be structurally and rigidly joined to the steel plate 12 in order to prevent deformations in the steel plate structure 10 due to eccentricity or contortion that may occur while being transported to the construction site after manufacture in a factory, and to prevent deformations in the steel plate structure 10 due to transverse pressure applied by unhardened concrete when casting the concrete in the steel plate structure 10.
  • the first structural members 14 can be rigidly joined to either just one of the two steel plates 12 or each of the two steel plates 12. In the case where the structural members 14 are rigidly joined to each of the two steel plates 12, the structural members 14 can be arranged opposite to each other, as illustrated in Figure 2.
  • the number of structural members 14 coupled to one surface of the steel plate 12 can be selected according to the load applied on the steel plate concrete wall.
  • Figure 2 shows that two first structural members 14 are rigidly joined to one of the pair of steel plates 12, and the two first structural members 14 are rigidly joined to the other of the pair of steel plates 12.
  • the effect of combining the steel plates 12, concrete and structural members 14 can increase the strength against the load, so that a thick wall for a skyscraper structure or a power plant structure can be formed without increasing the thickness of the steel plates 12. Therefore, since the strength against a large load is increased without increasing the thickness of the steel plates 12, the thickness of the steel plates 12 can be minimized to provide easier manufacture and installation of the steel plate structure 10, and the steel plate structure 10 can be modularized, allowing increased module size when performing the assembly on site.
  • the first structural member 14 is shaped like a long steel material and is rigidly joined, along the direction of gravity, to one surface of the steel plate 12 in such a way that one end of the first structural member 14 is protruded outward from one end of the steel plate 12 and the other end of the first structural member 14 is receded inward from the other end of the steel plate 12.
  • This is to structurally disperse vulnerable attachment portions in the steel plate concrete wall by differing the attachment portion of the steel plate 12 from the attachment portion of the first structural member 14, in cases where the steel plate structure 10 in accordance with the present embodiment is manufactured as a unit module in a factory and the unit modules are assembled on site to form the wall. This will be described in more detail with reference to Figures 5 and 6.
  • the struts 16 maintain a distance between the steel plates 12 so that the pair of steel plates 12 provide the space in between.
  • the struts 16 can have both ends coupled to the pair of steel plates 12, respectively, and in the case where the first structural members 14 are coupled to two steel plates in a zigzag configuration, it is possible to couple the both ends of the struts 16 to the steel plate 12 and the first structural member 14, respectively.
  • the struts 16 can be coupled to the facing first structural members 14.
  • the struts 16 maintain the distance between the steel plates 12 by considering the thickness of the wall, and provide sufficient rigidity by considering the transportation of the steel plate structure 10.
  • the increased thickness of the wall can entail a large distance between the two steel plates 12, and thus steel beams having high rigidity can be used for the struts 16.
  • the first structural members 14 and the struts 16 may all be made with H-beams, where the factory manufacture of the steel plate structure 10 can first include coupling the struts 16 to the first structural members 14 to form a frame and then include attaching the steel plates 12 to the first structural members 14 so as to shorten the manufacturing process.
  • Various types of structural materials such as steel rods, L-beams, C-beams,
  • H-beams, I-beams, T-beams, etc. can be used for the struts 16.
  • Used for the struts 16 in the present embodiment are H-beams, which are the same as the structural members 14.
  • the studs 18 can be protruded from one surface of the steel plates 12 so as to allow the steel plates 12 and the concrete to move in an integrated manner in order that the combined effect of the steel plates 12 and the concrete can withstand external loads.
  • the studs 18 are disposed uniformly on one surface of the steel plate 12 so that the concrete and the steel plate 12 can move as an integrated body over the entire surface.
  • the first structural members 14 may contribute to the integrating of the concrete with the steel plate 12. If beams having a large area of contact with the concrete, for example, H-beams, I-beams, C-beams, etc., are used for the first structural members 14, it may be possible to integrate the steel plates 12 and the concrete with just the first structural members 14, and thus the coupling of the studs 18 may be omitted. Of course, it is possible to reduce material costs by coupling the required number of studs 18 only, in consideration of the degree by which the first structural members 14 contribute to the integration between the steel plates 12 and the concrete.
  • beams having a large area of contact with the concrete for example, H-beams, I-beams, C-beams, etc.
  • Figure 5 is a perspective view illustrating steel plate structures coupled together in accordance with the first disclosed embodiment of the present invention
  • Figure 6 is a drawing illustrating the coupling of structural members in accordance with the first disclosed embodiment of the present invention. Illustrated in Figures 5 and 6 are the steel plate structure 10, the steel plates 12, the first structural members 14, the struts 16, a reinforcement plate 17, the studs 18, and bolts 19.
  • the steel plate structures 10 can be manufactured at a factory as a unit module, and the unit modules can be assembled on site to form a wall. Also, after manufacturing a bigger module by assembling the unit modules for the steel plate structure 10, the bigger modules can be hauled and installed in the final positions, and concrete can be cast to complete a steel plate concrete wall.
  • the attachment portions may be concentrated at the attachment portions, which are structurally vulnerable, between the structural materials of a structure. Therefore, by rigidly joining the first structural member 14 along the direction of gravity to one surface of the steel plate 12 such that one end of the first structural member 14 is protruded outward from one end of the steel plate 12 and the other end of the first structural member 14 is receded inward from the other end of the steel plate 12, the attachment portion of the steel plate 12 can be different from the attachment portion of the first structural member 14, when coupling the unit modules together, whereby the attachment portions, which may be structurally vulnerable, can be dispersed.
  • one end of the first structural member 14 of the steel plate structure 10 placed at the bottom is protruded outward from one end of the steel plate 12, whereas the other end of the first structural member 14 of the steel plate structure 10 placed at the top is receded inward from the other end of the steel plate 12.
  • one end of the first structural member 14 of the lower steel plate structure 10 can be inserted into the upper steel plate structure 10 so that one end of the first structural member 14 of the lower steel plate structure 10 can be in direct contact with the other end of the first structural member 14 of the upper steel plate structure 10.
  • the attachment portions of the first structural members 14 can be positioned inward from one end of the steel plate 12, whereby the attachment portions of the steel plates 12 are different from the attachment portions of the structural members 14. Since the first structural members 14 of the unit modules, which are arranged above and below, are connected together to transfer the load, end portions of the first structural members 14 have to be rigidly joined to each other. That is, the lower portion of the first structural member 14 of the unit module placed at the top is aligned with the upper portion of the first structural member 14 of the unit module placed at the bottom, and then they are rigidly joined together so that the forces in the structural members can be transferred efficiently to the foundation on the ground.
  • methods of rigidly joining the first structural members 14 can include adding reinforcement plates 17 onto the attachment portions of the first structural members 14 and then joining the first structural members 14 with the reinforcement plates 17 using high-tension bolts 19 or rivets, and welding the attachment portions to each other. Also, protruding portions of the first structural members 14 protruding from the bottom steel plate structure 10 are rigidly joined by welding to one surface of the steel plate 12 of the top steel plate structure 10.
  • Methods of coupling the steel plate structures 10 with each other that are arranged side by side can include welding the left and right end portions of the steel plate 12 and joining the steel plate structures 10 with reinforcement plates using high-tension bolts or rivets.
  • a vertical connector (not illustrated) that is coupled in the direction of gravity to one of the left and right end portions of a steel plate 12 can be included.
  • coupling the vertical connectors to one another can increase the cross sectional area of the coupling surface, and when the attachment between unit modules is complete, the vertical connectors can withstand the loads applied on the steel plate concrete wall, together with the structural members described above.
  • Figure 7 is a perspective view of a steel plate structure in accordance with a second disclosed embodiment of the present invention
  • Figure 8 is a perspective view illustrating steel plate structures coupled together in accordance with the second disclosed embodiment of the present invention. Illustrated in Figures 7 and 8 are a steel plate structure 10, steel plates 12, first structural members 14, second structural members 15, struts 16 and studs 18.
  • the steel plate structure 10 in accordance with the present embodiment can include, as its major components: a pair of steel plates 12, which are separated from each other and in which one surface of one of the pair of steel plates 12 faces one surface of the other of the pair of steel plates 12, the first structural member 14, which is rigidly joined along the direction of gravity to one surface of the steel plate such that one end of the first structural member 14 is protruded outward from one end of the steel plate and the other end of the first structural member 14 is receded inward from the other end of the steel plate; the second structural member 15, which is rigidly joined along the direction of gravity to one surface of the steel plate such that one end of the first structural member 14 is receded inward from one end of the steel plate and the other end of the first structural member 14 is protruded outward from the other end of the steel plate; and the struts 16, which keep the pair of steel plates 12 separated at a distance.
  • Components of the present embodiment other than the second structural members 15 are substantially the same as those of the first disclosed embodiment described above, and
  • the second structural members 15 which are rigidly joined along the direction of gravity to one surface of the steel plate 12 such that one end of the first structural member 14 is receded inward from one end of the steel plate 12 and the other end of the first structural member 14 is protruded outward from the other end of the steel plate 12, can also be included to place the attachment portions of the structural members 14 and 15 at either side of the portion where the steel plates 12 are attached.
  • the attachment portions can be different for the steel plate 12, the first structural member 14 and the second structural member 15 when coupling the unit modules together, and thus the attachment portions, which are structurally vulnerable, can be dispersed.
  • one end of the first structural member 14 of the steel plate structure 10 placed at the bottom is protruded outward from one end of the steel plate 12, and one end of the second structural member 15 of the steel plate structure 10 is receded inward from one end of the steel plate 12, whereas the other end of the first structural member 14 of the steel plate structure 10 placed at the top is receded inward from the other end of the steel plate 12, and the other end of the second structural member 15 of the steel plate structure 10 is protruded outward from the other end of the steel plate 12.
  • one end of the first structural member 14 of the lower steel plate structure 10 can be inserted into the upper steel plate structure 10 so that one end of the first structural member 14 of the lower steel plate structure 10 can be in direct contact with the other end of the first structural member 14 of the upper steel plate structure 10.
  • the other end of the second structural member 15 of the upper steel plate structure 10 can be inserted into the lower steel plate structure 10 so that the other end of the second structural member 15 of the upper steel plate structure 10 can be in direct contact with one end of the second structural member 15 of the lower steel plate structure 10.
  • the attachment portions of the first structural members 14 are placed at the top, and the attachment portions of the second structural members 15 are placed at the bottom, so that the attachment portions, which are structurally vulnerable, can be dispersed.
  • the second structural members 15 of the unit modules which are arranged above and below, are connected together to transfer the load, end portions of the second structural members 15 have to be rigidly joined to each other. That is, the lower portion of the second structural member 15 of the unit module placed at the top is aligned with the upper portion of the second structural member 15 of the unit module placed at the bottom, and then they are rigidly joined together so that the forces in the structural members can be transferred efficiently to the foundation on the ground.
  • the first structural member 14 and the second structural member 15 can be rigidly joined to one surface of at least one of the pair of steel plates 12 and can be disposed adjacent to each other. Therefore, as the first structural members 14 and the second structural members 15 are alternately disposed on one surface of at least one of the pair of steel plates 12, the load can be transferred uniformly.
  • each of the first structural members 14 and each of the second structural members 15 can be paired, as illustrated in Figure 7, and the paired first structural members 14 and the paired second structural members 15, each with one surface facing each other, can be interposed between the pair of steel plates 12. Then, the struts 16 can be coupled between the paired first structural members 14 as well as between the paired second structural members 15.
  • H-beams may be used for the first structural members 14, the second structural members 15 and the struts 16.
  • first structural members 14 and the second structural members 15 may be coupled by the struts 16 to form a frame, and then the steel plates 12 may be attached to the frame, thereby shortening the construction process.
  • Figure 9 is a drawing illustrating the construction of a steel plate concrete wall in accordance with a third disclosed embodiment of the present invention. Illustrated in Figure 9 are steel plate structures 10, concrete 30 and a concrete supply unit 28.
  • the steel plate concrete wall in accordance with the present embodiment is a wall that is formed by assembling a plurality of steel plate structures, each of which constitutes a unit module, and casting concrete inside the plurality of steel plate structures.
  • each of the steel plate structures includes, at least, a pair of steel plates, which are separated from each other and in which one surface of one of the pair of steel plates faces one surface of the other of the pair of steel plates, a first structural member, which is rigidly joined along the direction of gravity to one surface of the steel plate such that one end of the first structural member is protruded outward from one end of the steel plate and the other end of the first structural member is receded inward from the other end of the steel plate, and a strut, which maintains keeps the pair of steel plates at a distance.
  • an end of the first structural member, which is disposed vertically, of the steel plate structure is rigidly joined to an end of the first structural member of another steel plate structure.
  • a second structural member which is rigidly joined along the direction of gravity to one surface of the steel plate such that one end of the first structural member is receded inward from one end of the steel plate and the other end of the first structural member is protruded outward from the other end of the steel plate, can also be included.
  • an end of the second structural member, which is disposed vertically, of the steel plate structure is rigidly joined to an end of the second structural member of another steel plate structure.
  • Manufacturing the steel plate structures 10 in a factory allows for easier quality management for high-quality steel plate structures, and as the on-site work may be minimized, the construction time can be shortened.
  • the thickness of the steel plates can be reduced, allowing better welding properties and larger unit module sizes. Moreover, the axial forces or lateral forces applied on the steel plate concrete wall can be effectively withstood.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

A steel plate structure for forming a wall by casting concrete therein includes a pair of steel plates, which are separated from each other and in which one surface of one of the pair of steel plates faces one surface of the other of the pair of steel plates, a first structural member, which is rigidly joined along a direction of gravity to one surface of the steel plates such that one end of the first structural member is protruded outward from one end of the steel plates and the other end of the first structural member is receded inward from the other end of the steel plates, and a strut, which maintains a separation distance between the pair of steel plates. Thus, the overall thickness of the steel plate concrete wall can be reduced so as to allow better welding properties and increase in the unit module size.

Description

[DESCRIPTION] [Invention Title] STEEL PLATE STRUCTURE AND STEEL PLATE CONCRETE WALL
[Technical Field]
The present invention relates to a steel plate structure and a steel plate concrete wall. More particularly, the present invention relates to a steel plate structure for forming a wall by casting concrete in the steel plate structure and a steel plate concrete wall that is formed by assembling a plurality of steel plate structures, of which each is manufactured as a unit module, and casting concrete on the inside of the plurality of steel plate structures.
[Background Art]
As structures become increasingly taller and larger, it has become more important to provide higher strength and improved workability.
For reinforced concrete structures, steel frame structures, steel framed reinforced concrete structures, which have been in common use, a structure may be constructed by assembling mold forms and steel bars or steel frames, etc., and casting concrete directly at the construction site, inevitably lengthening the construction period and making the quality less reliable. Receiving attention as an alternative to such structures is the steel plate concrete structure (hereinafter referred to as "SC structure"), which is made by filling concrete on the inside of steel plates and to provide desirable properties in terms of strength, load-bearing, strain characteristics, workability, etc. The SC structure is made by filling in concrete between two steel plates and arranging studs, tie bars, etc. for keeping the concrete and the steel materials moving together so that the steel plates and concrete may move as an integrated body. Particularly, the SC structure can be utilized in the construction of large-scale structures, such as nuclear power plants, etc., to reduce the construction period by using modularization.
When using the SC structure, even if the load causes the inside concrete to reach its failure point, the steel plates may continue to bind the concrete, so that a greater level of load-bearing may be provided. Also, as the concrete is placed on the inside of the steel plates, the concrete can be prevented from deterioration by the external environment so that the durability of the structure may be improved.
Figure 1 is a perspective view of a steel plate structure before casting concrete in accordance with the related art. Hereinafter, the steel composition made of steel plates, etc., before casting the concrete to form an SC structure wall, will be referred to as a "steel plate structure." Constructing an SC structure wall using a steel plate structure according to the related art may involve vertically arranging steel plates 102 on both sides of the wall that is to be formed, connecting the two steel plates 102 using struts 106 shaped as steel rods for securing the steel plates 102, and then casting concrete in the space confined by the two steel plates 102, to form the SC structure wall. Here, numerous studs 104 may be installed on the inner surfaces of the steel plates 102 for better adhesion between the steel plates 102 and the concrete.
Also, when modularizing the conventional steel plate structure and assembling the modules on site to form a wall, the steel plates of the unit modules 108 may be welded together to attach the unit modules 108 to one another, or extra plates or couplers may be used in addition to the welding of the steel plates to enhance the adhesion strength between the unit modules 108.
However, when using the conventional steel structure in forming an SC structure wall for a large structure, such as a skyscraper and a nuclear power plant, the wall having the SC structure may become thicker and be subject to spatial limitation. Furthermore, due to the greater amount of loads that must be supported, the thicknesses of the steel plates and concrete may need to be increased. However, increasing the thickness of the steel plates may entail greater thermal deformation when welding the steel plates together, and may necessitate thermal post-treatment, hi particular, a structure for a skyscraper or a nuclear power plant may have to effectively withstand axial forces caused by the self-weight of the structure as well as lateral forces caused by earthquakes. Since the concrete within the steel members has low shear strength, the remaining shear stresses that are not borne by the concrete may have to be withstood by the steel plates. Thus, to withstand shear stresses from lateral forces caused by earthquakes, the thickness of the steel plates may have to be increased. Also, when modularizing the conventional steel plate structure and assembling the modules on site to form a wall, the extra plates or couplers for attaching the unit modules may be exposed at the exterior surface to adversely affect the appearance, and theraddition of secondary work may elongate the construction period.
Also, when casting concrete in the conventional steel plate structure, since the two steel plates are connected only by the rod-like struts, there is a risk that the steel plates may be deformed by the transverse pressure of the unhardened concrete.
[Disclosure] [Technical Problem] An aspect of the present invention is to provide a steel plate structure and a steel plate concrete wall that include a load-bearing structural member, in addition to the steel plate and concrete, to reduce the thickness of the steel plate concrete wall and the thickness of the steel plates, while effectively withstanding the axial forces or lateral forces acting on the wall. Another aspect of the present invention is to provide a steel plate structure and a steel plate concrete wall that allow easy attachment between the steel plate structure unit modules and allow structurally vulnerable attachment portions to disperse in the steel plate concrete wall when the steel plate structure is manufactured as a unit module and the unit modules are assembled on site to form the wall.
[Technical Solution]
An aspect of the present invention provides a steel plate structure for forming a wall by casting concrete therein that includes: a pair of steel plates, which is separated from each other and in which one surface of one of the pair of steel plates faces one surface of the other of the pair of steel plates; a first structural member, which is rigidly joined along a direction of gravity to one surface of the steel plates such that one end of the first structural member is protruded outward from one end of the steel plates and the other end of the first structural member is receded inward from the other end of the steel plates; and a strut, which maintains a separation distance between the pair of steel plates.
The first structural member of the steel plate structure can be formed in a pair, and the pair of first structural members can face each other and be rigidly joined to either surface of the pair of steel plates. Here, the strut can be interposed between and coupled to the pair of first structural members. In this case, the first structural member and the strut can be H-beams. The steel plate structure can further include a second structural member rigidly joined along a direction of gravity to one surface of the steel plates such that one end of the second structural member is receded inward from one end of the steel plates and the other end of the second structural member is protruded outward from the other end of the steel plates.
The first structural member and the second structural member can be rigidly joined to one surface of at least one of the pair of steel plates, in which the first structural member and the second structural member are adjacent to each other.
The first structural member, the second structural member and the strut can be H-beams.
The steel plate structure can further include a stud protruded outward from one surface of the steel plates.
Another aspect of the present invention provides a steel plate concrete wall, which is formed by assembling a plurality of steel plate structures and in which each steel plate structure constitutes a unit module and casts concrete inside the plurality of steel plate structures. The steel plate structure includes: a pair of steel plates, which is separated from each other and in which one surface of one of the pair of steel plates faces one surface of the other of the pair of steel plates; a first structural member, which is rigidly joined along a direction of gravity to one surface of the steel plates such that one end of the first structural member is protruded outward from one end of the steel plates and the other end of the first structural member is receded inward from the other end of the steel plates; and a strut, which maintains a separation distance between the pair of steel plates. Here, the steel plated structures are disposed above and below, and one end of the first structural member of the steel plate structure disposed above is rigidly joined to one end of the first structural member of the steel plate structure disposed below.
The steel plated structure can further include a second structural member rigidly joined along a direction of gravity to one surface of the steel plates such that one end of the second structural member is receded inward from one end of the steel plates and the other end of the second structural member is protruded outward from the other end of the steel plates.
The first structural member and the second structural member can be rigidly joined to one surface of at least one of the pair of steel plates, in which the first structural member and the second structural member are adjacent to each other. The first structural member can be formed in a pair, and the second structural member can be formed in a pair; each of the pair of first structural members and each of the pair of second structural members can be rigidly joined to one surface of the pair of steel plates; and the strut can be interposed between and coupled to the pair of first structural members and can be interposed between and coupled to the pair of second structural members. The first structural member, the second structural member and the strut can be H-beams.
The steel plated structure can further include a stud protruded outward from one surface of the steel plates.
[Description of Drawings]
Figure 1 is a perspective view of a steel plate structure before casting concrete in accordance with the related art.
Figure 2 is a perspective view of a steel plate structure in accordance with a first disclosed embodiment of the present invention.
Figure 3 is a side view of a portion of a steel plate structure in accordance with the first disclosed embodiment of the present invention.
Figure 4 is a plan view of a portion of a steel plate structure in accordance with the first disclosed embodiment of the present invention. Figure 5 is a perspective view illustrating steel plate structures coupled together in accordance with the first disclosed embodiment of the present invention.
Figure 6 illustrates coupling of structural members in accordance with the first disclosed embodiment of the present invention.
Figure 7 is a perspective view of a steel plate structure in accordance with a second disclosed embodiment of the present invention. Figure 8 is a perspective view illustrating steel plate structures coupled together in accordance with the second disclosed embodiment of the present invention.
Figure 9 illustrates construction of a steel plate concrete wall in accordance with a third disclosed embodiment of the present invention.
<Description of Numerals for Key Components in the Drawings> 10: steel plate structure 12: steel plate
14, 15: structural member 16: strut
17 : reinforcement plate 18 : stud 19: bolt 28: concrete supply unit
30: concrete
[Mode for Invention]
As the present invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to particular modes of practice, and it is to be appreciated that all changes, equivalents, and substitutes that do not depart from the spirit and technical scope of the present invention are encompassed in the present invention, hi the description of the present invention, certain detailed descriptions of related art are omitted when it is deemed that they may unnecessarily obscure the essence of the present invention.
While such terms as "first" and "second," etc., may be used to describe various components, such components must not be limited to the above terms. The above terms are used only to distinguish one component from another. The steel plate structure and steel plate concrete wall according to certain embodiments of the present invention will be described below in more detail with reference to the accompanying drawings. Those components that are the same or are in correspondence are rendered the same reference numeral regardless of the figure number, and redundant descriptions are omitted.
Figure 2 is a perspective view of a steel plate structure in accordance with a first disclosed embodiment of the present invention, and Figure 3 is a side view of a portion of a steel plate structure in accordance with the first disclosed embodiment of the present invention. Figure 4 is a plan view of a portion of a steel plate structure in accordance with the first disclosed embodiment of the present invention. Illustrated in Figures 2 to 4 are a steel plate structure 10, steel plates 12, first structural members 14, struts 16 and studs 18.
The major components of the present embodiment can include a pair of steel plates 12, which are separated from each other and in which one surface of one of the pair of steel plates 12 faces one surface of the other of the pair of steel plates 12, a first structural member 14, which is rigidly joined along the direction of gravity to one surface of the steel plate such that one end of the first structural member 14 is protruded outward from one end of the steel plate and the other end of the first structural member 14 is receded inward from the other end of the steel plate, and a strut 16, which maintains a separation distance between the pair of steel plates 12. Thus, the overall thickness of the steel plate concrete wall can be reduced so as to allow better welding properties and increase in the unit module size. Also, the axial forces or lateral forces acting on the wall can be effectively withstood.
The pair of steel plates 12 can be installed with a distance from each other, each with one surface facing each other, to form a space between the steel plates 12. This space is where the concrete is to be cast in later, and the distance between the steel plates 12 can be determined in accordance with the load that will be applied on the steel plate concrete wall.
When the steel plate concrete wall is formed, the steel plates 12 will be integrated with the concrete to withstand the load. Also, the steel plates 12 can keep the concrete inside after the concrete reaches its failure point, to thereby increase the load-bearing capacity of the steel plate concrete wall.
The first structural member 14, one end of which is protruded outward from one end of a steel plate 12 and the other end of which is receded inward from the other end of the steel plate 12, is rigidly joined along the direction of gravity to one surface of one of the pair of steel plates 12. The first structural members 14 can withstand the load applied on the steel plate concrete wall, together with the steel plates 12 and concrete.
The first structural members 14 can be arranged along the direction of gravity, to withstand the axial forces applied on the steel plate concrete wall, as well as the lateral forces caused by earthquakes, wind, etc. That is, the first structural members 14 can be coupled to one surface of a steel plate 12 in a longitudinal direction of the steel plate concrete wall. Together with the concrete and steel plates of the steel plate structure 10, the first structural members 14 can withstand the loads in the axial direction, as well as shear forces in the lateral direction caused by earthquakes, etc., when the steel plate concrete wall is rigidly joined to the foundation. Moreover, such first structural members 14 can, together with the studs 18, which will be described later, contribute to the integration of the steel plates 12 and the concrete.
Methods of rigidly joining the steel plates 12 and the first structural members 14 can include joining the steel plates 12 with the structural members 14 using high-tension bolts or rivets, and welding the structural members 14 to the steel plates 12, so that the structural members 14 can move as an integrated body with the steel plates 12.
Various types of structural materials, such as L-beams, H-beams, I-beams, T-beams, etc., can be used for the first structural members 14. This particular embodiment presents an example of using H-beams for the first structural members 14, with the flanges of the H-beams rigidly joined to one surface of a steel plate.
The first structural members 14 can be structurally and rigidly joined to the steel plate 12 in order to prevent deformations in the steel plate structure 10 due to eccentricity or contortion that may occur while being transported to the construction site after manufacture in a factory, and to prevent deformations in the steel plate structure 10 due to transverse pressure applied by unhardened concrete when casting the concrete in the steel plate structure 10.
The first structural members 14 can be rigidly joined to either just one of the two steel plates 12 or each of the two steel plates 12. In the case where the structural members 14 are rigidly joined to each of the two steel plates 12, the structural members 14 can be arranged opposite to each other, as illustrated in Figure 2. The number of structural members 14 coupled to one surface of the steel plate 12 can be selected according to the load applied on the steel plate concrete wall. Figure 2 shows that two first structural members 14 are rigidly joined to one of the pair of steel plates 12, and the two first structural members 14 are rigidly joined to the other of the pair of steel plates 12.
As the first structural members 14 are structurally and rigidly joined to the steel plates 12 in the direction of gravity, the effect of combining the steel plates 12, concrete and structural members 14 can increase the strength against the load, so that a thick wall for a skyscraper structure or a power plant structure can be formed without increasing the thickness of the steel plates 12. Therefore, since the strength against a large load is increased without increasing the thickness of the steel plates 12, the thickness of the steel plates 12 can be minimized to provide easier manufacture and installation of the steel plate structure 10, and the steel plate structure 10 can be modularized, allowing increased module size when performing the assembly on site.
The first structural member 14 is shaped like a long steel material and is rigidly joined, along the direction of gravity, to one surface of the steel plate 12 in such a way that one end of the first structural member 14 is protruded outward from one end of the steel plate 12 and the other end of the first structural member 14 is receded inward from the other end of the steel plate 12. This is to structurally disperse vulnerable attachment portions in the steel plate concrete wall by differing the attachment portion of the steel plate 12 from the attachment portion of the first structural member 14, in cases where the steel plate structure 10 in accordance with the present embodiment is manufactured as a unit module in a factory and the unit modules are assembled on site to form the wall. This will be described in more detail with reference to Figures 5 and 6.
The struts 16 maintain a distance between the steel plates 12 so that the pair of steel plates 12 provide the space in between. The struts 16 can have both ends coupled to the pair of steel plates 12, respectively, and in the case where the first structural members 14 are coupled to two steel plates in a zigzag configuration, it is possible to couple the both ends of the struts 16 to the steel plate 12 and the first structural member 14, respectively.
Furthermore, in case the first structural members 14 are arranged on two steel plates 12 to face each other, as illustrated in Figure 2, the struts 16 can be coupled to the facing first structural members 14. The struts 16 maintain the distance between the steel plates 12 by considering the thickness of the wall, and provide sufficient rigidity by considering the transportation of the steel plate structure 10. In the case of a wall for a large structure, the increased thickness of the wall can entail a large distance between the two steel plates 12, and thus steel beams having high rigidity can be used for the struts 16. In the present embodiment, the first structural members 14 and the struts 16 may all be made with H-beams, where the factory manufacture of the steel plate structure 10 can first include coupling the struts 16 to the first structural members 14 to form a frame and then include attaching the steel plates 12 to the first structural members 14 so as to shorten the manufacturing process. Various types of structural materials, such as steel rods, L-beams, C-beams,
H-beams, I-beams, T-beams, etc., can be used for the struts 16. Used for the struts 16 in the present embodiment are H-beams, which are the same as the structural members 14.
The studs 18 can be protruded from one surface of the steel plates 12 so as to allow the steel plates 12 and the concrete to move in an integrated manner in order that the combined effect of the steel plates 12 and the concrete can withstand external loads. The studs 18 are disposed uniformly on one surface of the steel plate 12 so that the concrete and the steel plate 12 can move as an integrated body over the entire surface.
As described above, in the case where the first structural members 14 are rigidly joined to one surface of the steel plate 12, the first structural members 14 may contribute to the integrating of the concrete with the steel plate 12. If beams having a large area of contact with the concrete, for example, H-beams, I-beams, C-beams, etc., are used for the first structural members 14, it may be possible to integrate the steel plates 12 and the concrete with just the first structural members 14, and thus the coupling of the studs 18 may be omitted. Of course, it is possible to reduce material costs by coupling the required number of studs 18 only, in consideration of the degree by which the first structural members 14 contribute to the integration between the steel plates 12 and the concrete.
Figure 5 is a perspective view illustrating steel plate structures coupled together in accordance with the first disclosed embodiment of the present invention, and Figure 6 is a drawing illustrating the coupling of structural members in accordance with the first disclosed embodiment of the present invention. Illustrated in Figures 5 and 6 are the steel plate structure 10, the steel plates 12, the first structural members 14, the struts 16, a reinforcement plate 17, the studs 18, and bolts 19.
In the present embodiment, the steel plate structures 10 can be manufactured at a factory as a unit module, and the unit modules can be assembled on site to form a wall. Also, after manufacturing a bigger module by assembling the unit modules for the steel plate structure 10, the bigger modules can be hauled and installed in the final positions, and concrete can be cast to complete a steel plate concrete wall.
Stresses may be concentrated at the attachment portions, which are structurally vulnerable, between the structural materials of a structure. Therefore, by rigidly joining the first structural member 14 along the direction of gravity to one surface of the steel plate 12 such that one end of the first structural member 14 is protruded outward from one end of the steel plate 12 and the other end of the first structural member 14 is receded inward from the other end of the steel plate 12, the attachment portion of the steel plate 12 can be different from the attachment portion of the first structural member 14, when coupling the unit modules together, whereby the attachment portions, which may be structurally vulnerable, can be dispersed.
Referring to Figure 5, one end of the first structural member 14 of the steel plate structure 10 placed at the bottom is protruded outward from one end of the steel plate 12, whereas the other end of the first structural member 14 of the steel plate structure 10 placed at the top is receded inward from the other end of the steel plate 12. When two steel plate structures 10 are arranged above and below, one end of the first structural member 14 of the lower steel plate structure 10 can be inserted into the upper steel plate structure 10 so that one end of the first structural member 14 of the lower steel plate structure 10 can be in direct contact with the other end of the first structural member 14 of the upper steel plate structure 10. As a result, the attachment portions of the first structural members 14 can be positioned inward from one end of the steel plate 12, whereby the attachment portions of the steel plates 12 are different from the attachment portions of the structural members 14. Since the first structural members 14 of the unit modules, which are arranged above and below, are connected together to transfer the load, end portions of the first structural members 14 have to be rigidly joined to each other. That is, the lower portion of the first structural member 14 of the unit module placed at the top is aligned with the upper portion of the first structural member 14 of the unit module placed at the bottom, and then they are rigidly joined together so that the forces in the structural members can be transferred efficiently to the foundation on the ground.
As illustrated in Figure 6, methods of rigidly joining the first structural members 14 can include adding reinforcement plates 17 onto the attachment portions of the first structural members 14 and then joining the first structural members 14 with the reinforcement plates 17 using high-tension bolts 19 or rivets, and welding the attachment portions to each other. Also, protruding portions of the first structural members 14 protruding from the bottom steel plate structure 10 are rigidly joined by welding to one surface of the steel plate 12 of the top steel plate structure 10.
Methods of coupling the steel plate structures 10 with each other that are arranged side by side can include welding the left and right end portions of the steel plate 12 and joining the steel plate structures 10 with reinforcement plates using high-tension bolts or rivets. Also, for horizontally coupling the steel plate structures 10 constituting unit modules with each other, a vertical connector (not illustrated) that is coupled in the direction of gravity to one of the left and right end portions of a steel plate 12 can be included. When attaching unit modules together, coupling the vertical connectors to one another can increase the cross sectional area of the coupling surface, and when the attachment between unit modules is complete, the vertical connectors can withstand the loads applied on the steel plate concrete wall, together with the structural members described above.
Figure 7 is a perspective view of a steel plate structure in accordance with a second disclosed embodiment of the present invention, and Figure 8 is a perspective view illustrating steel plate structures coupled together in accordance with the second disclosed embodiment of the present invention. Illustrated in Figures 7 and 8 are a steel plate structure 10, steel plates 12, first structural members 14, second structural members 15, struts 16 and studs 18.
The steel plate structure 10 in accordance with the present embodiment can include, as its major components: a pair of steel plates 12, which are separated from each other and in which one surface of one of the pair of steel plates 12 faces one surface of the other of the pair of steel plates 12, the first structural member 14, which is rigidly joined along the direction of gravity to one surface of the steel plate such that one end of the first structural member 14 is protruded outward from one end of the steel plate and the other end of the first structural member 14 is receded inward from the other end of the steel plate; the second structural member 15, which is rigidly joined along the direction of gravity to one surface of the steel plate such that one end of the first structural member 14 is receded inward from one end of the steel plate and the other end of the first structural member 14 is protruded outward from the other end of the steel plate; and the struts 16, which keep the pair of steel plates 12 separated at a distance. Components of the present embodiment other than the second structural members 15 are substantially the same as those of the first disclosed embodiment described above, and thus the second structural members 15 will be mainly described hereinafter.
In the case where the steel plate structure 10 in accordance with the present embodiment is manufactured as a unit module in a factory and the unit modules are assembled on site to form a wall, the second structural members 15, which are rigidly joined along the direction of gravity to one surface of the steel plate 12 such that one end of the first structural member 14 is receded inward from one end of the steel plate 12 and the other end of the first structural member 14 is protruded outward from the other end of the steel plate 12, can also be included to place the attachment portions of the structural members 14 and 15 at either side of the portion where the steel plates 12 are attached.
As illustrated in Figure 7, by disposing the first structural member 14 in such a way that one end of the first structural member 14 is protruded outward from one end of the steel plate 12 and the other end of the first structural member 14 is receded inward from the other end of the steel plate 12, and by disposing the second structural member 15 in such a way that one end of the first structural member 14 is receded inward from one end of the steel plate 12 and the other end of the first structural member 14 is protruded outward from the other end of the steel plate 12, the attachment portions can be different for the steel plate 12, the first structural member 14 and the second structural member 15 when coupling the unit modules together, and thus the attachment portions, which are structurally vulnerable, can be dispersed.
Referring to Figure 8, one end of the first structural member 14 of the steel plate structure 10 placed at the bottom is protruded outward from one end of the steel plate 12, and one end of the second structural member 15 of the steel plate structure 10 is receded inward from one end of the steel plate 12, whereas the other end of the first structural member 14 of the steel plate structure 10 placed at the top is receded inward from the other end of the steel plate 12, and the other end of the second structural member 15 of the steel plate structure 10 is protruded outward from the other end of the steel plate 12. When the two steel plate structures 10 are arranged above and below, one end of the first structural member 14 of the lower steel plate structure 10 can be inserted into the upper steel plate structure 10 so that one end of the first structural member 14 of the lower steel plate structure 10 can be in direct contact with the other end of the first structural member 14 of the upper steel plate structure 10. Also, the other end of the second structural member 15 of the upper steel plate structure 10 can be inserted into the lower steel plate structure 10 so that the other end of the second structural member 15 of the upper steel plate structure 10 can be in direct contact with one end of the second structural member 15 of the lower steel plate structure 10.
Therefore, from the position where the steel plates 12 are attached, the attachment portions of the first structural members 14 are placed at the top, and the attachment portions of the second structural members 15 are placed at the bottom, so that the attachment portions, which are structurally vulnerable, can be dispersed. Since the second structural members 15 of the unit modules, which are arranged above and below, are connected together to transfer the load, end portions of the second structural members 15 have to be rigidly joined to each other. That is, the lower portion of the second structural member 15 of the unit module placed at the top is aligned with the upper portion of the second structural member 15 of the unit module placed at the bottom, and then they are rigidly joined together so that the forces in the structural members can be transferred efficiently to the foundation on the ground. The first structural member 14 and the second structural member 15 can be rigidly joined to one surface of at least one of the pair of steel plates 12 and can be disposed adjacent to each other. Therefore, as the first structural members 14 and the second structural members 15 are alternately disposed on one surface of at least one of the pair of steel plates 12, the load can be transferred uniformly. In this case, each of the first structural members 14 and each of the second structural members 15 can be paired, as illustrated in Figure 7, and the paired first structural members 14 and the paired second structural members 15, each with one surface facing each other, can be interposed between the pair of steel plates 12. Then, the struts 16 can be coupled between the paired first structural members 14 as well as between the paired second structural members 15.
In the present embodiment, H-beams may be used for the first structural members 14, the second structural members 15 and the struts 16. Thus, when fabricating the steel plate structure 10 at a factory, the first structural members 14 and the second structural members 15 may be coupled by the struts 16 to form a frame, and then the steel plates 12 may be attached to the frame, thereby shortening the construction process.
Figure 9 is a drawing illustrating the construction of a steel plate concrete wall in accordance with a third disclosed embodiment of the present invention. Illustrated in Figure 9 are steel plate structures 10, concrete 30 and a concrete supply unit 28. The steel plate concrete wall in accordance with the present embodiment is a wall that is formed by assembling a plurality of steel plate structures, each of which constitutes a unit module, and casting concrete inside the plurality of steel plate structures. Here, each of the steel plate structures includes, at least, a pair of steel plates, which are separated from each other and in which one surface of one of the pair of steel plates faces one surface of the other of the pair of steel plates, a first structural member, which is rigidly joined along the direction of gravity to one surface of the steel plate such that one end of the first structural member is protruded outward from one end of the steel plate and the other end of the first structural member is receded inward from the other end of the steel plate, and a strut, which maintains keeps the pair of steel plates at a distance. Here, an end of the first structural member, which is disposed vertically, of the steel plate structure, is rigidly joined to an end of the first structural member of another steel plate structure. In this case, a second structural member, which is rigidly joined along the direction of gravity to one surface of the steel plate such that one end of the first structural member is receded inward from one end of the steel plate and the other end of the first structural member is protruded outward from the other end of the steel plate, can also be included. Here, an end of the second structural member, which is disposed vertically, of the steel plate structure is rigidly joined to an end of the second structural member of another steel plate structure. After a required number of steel plate structures 10, constituting unit modules, are manufactured in a factory, the steel plate structures 10 can be transported to the construction site and assembled into a bigger module, and concrete 30 can be cast using the concrete supply part 28, to form a steel plate concrete wall.
Manufacturing the steel plate structures 10 in a factory allows for easier quality management for high-quality steel plate structures, and as the on-site work may be minimized, the construction time can be shortened.
Other components of the present embodiment are substantially the same as those described above, and thus will not be described again.
While the present invention has been described with reference to particular embodiments, it is to be appreciated that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention, as defined by the appended claims below.
[Industrial Applicability] By utilizing load-bearing structural members together with the steel plates and concrete, the overall thickness of the steel plate concrete wall can be reduced to allow a more efficient use of space.
Moreover, the thickness of the steel plates can be reduced, allowing better welding properties and larger unit module sizes. Moreover, the axial forces or lateral forces applied on the steel plate concrete wall can be effectively withstood.
Furthermore, in the case where the steel plate structure is implemented as a unit module, the unit modules can be readily attached to each other, and the forces in the structural members can be transferred directly between the unit modules, whereby the strength of the wall can be increased.

Claims

[CLAIMS] [Claim 1 ]
A steel plate structure for forming a wall by casting concrete therein, the steel plate structure comprising: a pair of steel plates separated from each other, one surface of one of the pair of steel plates facing one surface of the other of the pair of steel plates; a first structural member rigidly joined along a direction of gravity to one surface of the steel plates such that one end of the first structural member is protruded outward from one end of the steel plates and the other end of the first structural member is receded inward from the other end of the steel plates; and a strut maintaining a separation distance between the pair of steel plates.
[Claim 2]
The steel plate structure of claim 1, wherein of the first structural member is formed in a pair, and the pair of first structural members face each other and are rigidly joined to either surface of the pair of steel plates, and wherein the strut is interposed between and coupled to the pair of first structural members.
[Claim 3] The steel plate structure of claim 1 or 2, wherein the first structural member and the strut are H-beams.
[Claim 4] The steel plate structure according to any one of claims 1 to 3, further comprising a second structural member rigidly joined along a direction of gravity to one surface of the steel plates such that one end of the second structural member is receded inward from one end of the steel plates and the other end of the second structural member is protruded outward from the other end of the steel plates.
[Claim 5]
The steel plate structure of claim 4, wherein the first structural member and the second structural member are rigidly joined to one surface of at least one of the pair of steel plates, the first structural member and the second structural member being adjacent to each other.
[Claim 6]
The steel plate structure of claim 4 or 5, wherein: the first structural member is formed in a pair, and the second structural member is formed in a pair; each of the pair of first structural members and each of the pair of second structural members are rigidly joined to one surface of the pair of steel plates; and the strut is interposed between and coupled to the pair of first structural members and is interposed between and coupled to the pair of second structural members.
[Claim 7]
The steel plate structure of claim 6, wherein the first structural member, the second structural member and the strut are H-beams.
[Claim 8]
The steel plate structure according to any one of claims 1 to 7, further comprising a stud protruded outward from one surface of the steel plates.
[Claim 9]
A steel plate concrete wall being formed by assembling a plurality of steel plate structures, each steel plate structure constituting a unit module, and casting concrete inside the plurality of steel plate structures, the steel plate structure comprising: a pair of steel plates separated from each other, one surface of one of the pair of steel plates facing one surface of the other of the pair of steel plates; a first structural member rigidly joined along a direction of gravity to one surface of the steel plates such that one end of the first structural member is protruded outward from one end of the steel plates and the other end of the first structural member is receded inward from the other end of the steel plates; and a strut maintaining a separation distance between the pair of steel plates, wherein the steel plated structures are disposed above and below, and one end of the first structural member of the steel plate structure disposed above is rigidly joined to one end of the first structural member of the steel plate structure disposed below.
[Claim 10]
The steel plate concrete wall of claim 9, further comprising a second structural member rigidly joined along a direction of gravity to one surface of the steel plates such that one end of the second structural member is receded inward from one end of the steel plates and the other end of the second structural member is protruded outward from the other end of the steel plates.
[Claim 11 ]
The steel plate concrete wall of claim 10, wherein one end of the second structural member of the steel plate structure disposed above is rigidly joined to one end of the second structural member of the steel plate structure disposed below. [Claim 12]
The steel plate concrete wall of claim 10 or 11, wherein the first structural member and the second structural member are rigidly joined to one surface of at least one of the pair of steel plates, the first structural member and the second structural member being adjacent to each other.
PCT/KR2008/004828 2008-07-30 2008-08-20 Steel plate structure and steel plate concrete wall Ceased WO2010013857A1 (en)

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CN108620796A (en) * 2018-07-13 2018-10-09 中国核工业二三建设有限公司 Shield workshop SC structure longitudinal seam welding auxiliary moulds
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CN111042385A (en) * 2019-12-29 2020-04-21 北京工业大学 An assembled double-layer steel plate composite shear wall
CN111980226A (en) * 2020-08-20 2020-11-24 中国建筑标准设计研究院有限公司 Full-assembly mortise-tenon connection multi-cavity steel plate combined shear wall and construction method thereof
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