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WO2007131115A1 - Système d'ossature structurelle en composite et son procédé de construction - Google Patents

Système d'ossature structurelle en composite et son procédé de construction Download PDF

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Publication number
WO2007131115A1
WO2007131115A1 PCT/US2007/068152 US2007068152W WO2007131115A1 WO 2007131115 A1 WO2007131115 A1 WO 2007131115A1 US 2007068152 W US2007068152 W US 2007068152W WO 2007131115 A1 WO2007131115 A1 WO 2007131115A1
Authority
WO
WIPO (PCT)
Prior art keywords
composite
framing system
metal deck
structural member
deck section
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/US2007/068152
Other languages
English (en)
Inventor
Housh Rahimzadeh
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.)
Diversakore LLC
Original Assignee
Diversakore LLC
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 Diversakore LLC filed Critical Diversakore LLC
Publication of WO2007131115A1 publication Critical patent/WO2007131115A1/fr
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
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/29—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated the prefabricated parts of the beams consisting wholly of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete

Definitions

  • the present invention relates to building construction, and more specifically to a composite steel and concrete framing system that forms a substantially monolithic support structure.
  • the framing system constitutes the essential load-bearing structure that provides the stability and integrity of the building.
  • the typical multi-story framing system consists of a plurality of stacked vertical columns interconnected with horizontal support beams.
  • vertical columns and horizontal beams are composed of structural steel, precast concrete, formed- in-place concrete, or some combination thereof.
  • the horizontal beams typically support flooring sections of precast concrete, metal, or formed-in- place concrete.
  • the framing system is designed to support well in excess of the anticipated loads developed by the structure itself and all live loads placed thereon. The forces generated by these loads are largely borne by the horizontal beams, the vertical columns and the connection members that join the beams and columns.
  • One known method of erecting a framing system is to pour concrete in place, utilizing suitable forms, to produce vertical columns, horizontal beams, and floor sections. Pouring concrete in place has the advantage of producing buildings that are strong, highly rigid, durable, and highly fire resistant. However, this method requires the use of labor intensive forms and complicated temporary supports that are expensive, easily destroyed and impede efficient work flow. In addition, concrete as a material is, relatively speaking, brittle and not as flexible as steel. Another known method of erecting a framing system is to assemble precast concrete columns, beams and floor sections. This method has the advantage of rapid erection, with little need for temporary supports. However, entirely precast concrete buildings tend to be less rigid than poured-in-place concrete buildings and have other inherent structural limitations.
  • Still another method of erecting a framing system is to assemble steel columns and beams. This method also has the advantage of rapid erection, but all steel frames have inherent structural limitations. Most notably, all steel framing systems are limited by the forces borne by the steel connecting members-- typically the weakest elements of the framing system.
  • each composite beam comprises a steel beam and interior of solidifying material, such as poured concrete.
  • the steel beam includes a bottom plate, adjacent containment sides fortified by strap bars, studs, and support angles.
  • Cross beams may be attached to the composite beam. The support angles and cross beams are welded to the containment sides and provide a support surface for the flooring components.
  • the flooring components in this embodiment are positioned so as to be aligned with a longitudinal axis parallel to the steel beam. Moreover, the flooring components are welded to the support angles and the wide flanges before concrete is poured into the steel beam and on top of the flooring components.
  • the steel beam includes a bottom plate, adjacent containment sides fortified by strap bars, studs, and support angles.
  • the support angles are welded to the containment sides and provide a support surface for the flooring components.
  • the flooring components in this embodiment are positioned so as to be aligned with a transverse axis perpendicular to the steel beam. Moreover, the flooring components are welded to the support angles before concrete is poured into the steel beam and on top of the flooring components.
  • substantially concrete vertical columns are provided, each with at least one receiving saddle for supporting the end of a steel beam.
  • the steel beams are raised and the flooring components, which span longitudinally or transversely between adjacent steel beams, are set. Concrete is then poured to fill the interior of the steel beam; the strap bars act to resist the outward forces created by the wet concrete and the studs act to bond the cured concrete to the steel beam.
  • Sufficient concrete is poured to fill the steel beam and to substantially cover the flooring components. Concrete can be added to form a bonding layer and to fill all voids in or around the columns, thereby creating a substantially monolithic layer. Some blocking may be necessary at the columns to stop seepage of the concrete or bonding layer while the concrete is wet.
  • the composite beam is adapted for use along the perimeter of a horizontal level.
  • FIG. 1 is a plan view illustrating a typical section of an exemplary framing system, according to the present invention.
  • FIG. 2 is a cross-sectional view of the framing system of FIG. 1.
  • FIG. 3 is a plan view illustrating a typical section of an exemplary framing system, according to the present invention.
  • FIG. 4 is a cross-sectional view of the framing system of FIG. 3.
  • FIG. 5 is a cross-sectional view of an exemplary composite beam, positioned at the perimeter of an exemplary framing system.
  • FIG. 6 is a cross-sectional view of a column and two exemplary beams, illustrating an exemplary connection between a column and beam.
  • the corrugated metal deck sections are positioned along a transverse axis that is substantially perpendicular to the composite beams 16.
  • a bonding layer 20 tops the flooring components 12 to join the flooring components 12, the composite beams 16, and the columns 14 to create a substantially rigid joint at each connection.
  • the bonding layer 20 is a plasticized material, such as concrete or an air-entranced material such as Gyp-Crete ® , or the like, which hardens to provide improved structural integrity between the discrete framing components.
  • FIG. 2 illustrates a cross-sectional view of an exemplary embodiment of a composite beam 16 supporting metal flooring components 12.
  • the composite beam 16 includes an exterior steel beam 22 sheath and solidifying material 24.
  • the steel beam 22 includes a bottom plate 26, containment sides 28, means for reinforcement 30, shear studs 32, lower support surfaces 36, and upper support surfaces 38.
  • the various components that comprise the beam 16 are shown as individual members that are connected together by known methods, for example, welding.
  • the beam 16 is roll-formed or extruded; the method of manufacture not being a limitation or restriction.
  • the metal flooring component 12 can be attached to the cross beams 15 and composite beam 16 by known methods including welding and/or fasteners.
  • FIG. 4 there is shown a cross-sectional view of an exemplary embodiment of a composite beam 16 supporting flooring components 12.
  • the composite beam 16 includes an exterior steel beam 22 sheath and solidifying material 24.
  • the steel beam 22 includes a bottom plate 26, containment sides 28, means for reinforcement 30, shear studs 32, and support angles 38.
  • the containment sides 28 are attached to the bottom plate 26, by welding or other means, and extend upwardly.
  • FIG. 4 illustrates the containment sides 28 attached along the outer edges 35 of the bottom plate 26, but may be attached inwardly away from the outer edges to form one or more lower support surfaces (not shown).
  • Support angles 38 are attached to the containment sides 28 to form a support surface 34, by welding or other means. These support angles may extend inwardly towards the center of the beam 22 or outwardly away from the beam 22.
  • the support angles 38 provide a support surface 34 for floor components 12. It will be understood that support angles 38 may be oriented on either face of the containment side 28 and at various elevations, the location being merely a design choice. It is also contemplated that the support surface provided by the support angles may be formed by merely thickening the uppermost edge of the containment sides 28 to a suitable width or bending the containment side to form a support surface.
  • means for reinforcement 30 are attached at one end to the inside face of a first containment side and at the opposite end to the inside face of a second containment side. Placed approximately four feet on-center; one purpose of the means for reinforcement 30 is to restrain the containment sides 28 from outwardly splaying or otherwise laterally moving.
  • the means for reinforcement resist concentric loading and create a more rigid box structure during erection of the system.
  • the means for reinforcement 30 illustrated are strap bars. It will be understood that equally suitable means for reinforcement include, but is not limited to, restraining/reinforcement devices such as strap bars, interior or exterior mounted ribs, fins, stiffening plates, angles, bands, and the like.
  • Various means for reinforcement may be positioned at differing locations.
  • means for joining 32 are attached to the bottom plate approximately one foot on-center; one purpose of the means for joining 32 is to anchor the cured concrete to the steel beam 22.
  • the means for joining 32 illustrated are shear studs. It will be understood that equally suitable means for joining include, but is not limited to, shear/joining devices such as studs, ribs, fins, anchor bolts, rebar, and the like. Various joining means may be positioned at differing locations. Further, an abundance of means for reinforcement may serve the combined function of reinforcing devices and joining devices. In addition, means for joining function to fully engage the steel and concrete elements for full composite development. Advantages of attaining full composite development is that the beam profile 15 is lowered, that is, the beam could be made shorter, and the beam span to depth ratio is increased.
  • the bottom plate 26, containment sides 28, means for reinforcement 30, means for joining 32, and support angles 38 are formed from known shape steel. Nevertheless, it is contemplated that as a design choice, steel may be substituted with other materials that meet minimum performance characteristics. It is also contemplated that the steel beam 22 illustrated and described above may be formed as a single, substantially monolithic unit, such as by roll forming and/or extruding methods.
  • the steel beam 22 supports the bottom surface of the floor component 12 with the support angles 38.
  • Reinforcing members 42 may be added to provide additional force bearing capacity to the composite beam 16, and are located according to design criteria.
  • Reinforcing members 42 may be reinforcing members such as rebar or post tensioned cables.
  • the foundation (not shown) and vertical columns 14 are constructed according to methods well known by those skilled in the art.
  • the columns are concrete, either precast or formed-in-place, and are provided with a receiving saddle 44, as best shown in FIG. 6.
  • hollow steel columns of various shapes e.g., square or circular
  • the steel column is provided with an external receiving saddle 44.
  • the saddles 44 which are approximately the height of the composite beam 16 and approximately 1" wider and approximately 3" deep, receive and support the end of the composite beam 16. The end of each composite beam 16 is further secured to the column by methods well known to those skilled in the art.
  • FIG. 2 and FIG. 4 best illustrate flooring components 12, supported by the steel beam 22, which in turn is supported by columns 14.
  • Sufficient concrete 24 is poured to fill the steel beam 22 and to substantially cover the flooring components 12 to at least create a sub-floor. It is contemplated that concrete 24 can continue to be added to form the bonding layer 20 and to fill any voids in or around the columns 14. In other words, the solidifying material 24 and bonding layer 20 may be of the same plasticized material.
  • the bonding layer 20 creates a substantially monolithic layer that connects and unites each horizontal level of flooring components 12, composite beams 16 and columns 14 together to form a substantially rigid joint.
  • the steel beam 22 initially provides support to the floor components 12. Thereafter, the steel beam 22 acts as a form to accept the concrete 24. Finally, the steel beam 22 becomes an integral part of the composite beam 16.
  • Some of the advantages realized by providing the composite beam 16 taught herein include: a structural beam with greatly improved performance characteristics in spans of at least sixty feet in length, a substantially more rigid frame 10 by interlocking the flooring components 12, composite beams 16 and columns 14 of each horizontal level together with a bonding layer 20, and, it is believed, the composite beam taught herein, including the means for joining 32, means for reinforcement 30, and reinforcing members 42, provides a structural member that achieves a fire-resistant rating without fire proofing that is as high as a steel beam sized for the same loads with fire-proofing. Individually and together these advantages reduce construction related expense and time.
  • FIG. 5 depicts an exemplary embodiment of a perimeter composite beam 50 adapted for use along the perimeter of a horizontal level.
  • the composite beam 50 includes an exterior containment side 52 that extends upwardly from the bottom plate 26.
  • the upper edge 54 terminates and returns at the elevation of the bonding layer 20.
  • the configuration, even the existence, of the return position 56 is a design choice and may be replaced with a support angle for the purpose of attaching walls, windows, rails or other building components.
  • the remaining components illustrated in FIG. 5, together with their advantages, are substantially similar to the steel beam 22 and composite beam 16 described above.
  • FIG. 6 illustrates a cross-section of a typical concrete column 14 supporting one end each of two steel beams 22.
  • the vertical column 14 illustrated is a formed-in-place concrete column, constructed in a manner well known by those skilled in the art. It is also contemplated that the column 14 may be configured with precast concrete or a steel beam.
  • the support column 14 illustrated includes two receiving saddles 44 to support the steel beams 22. The location and number of receiving saddles 44 is a design choice, as is any additional means for attachment between the beam 22 and column 14. From the configuration of the horizontal level illustrated in FIG. 6, the next step in constructing the framing system is to pour solidifying material 24 into the steel beam 22 to form the bonding layer 20, or pour both a solidifying material 24 and a bonding layer 20.
  • solidifying material 24 and bonding layer 20 is a design choice governed by structural design criteria and construction timing requirements. It will be understood that some blocking (not shown) may be necessary around the columns 14 to stop seepage of the material 24 or bonding layer 20 and that some temporary intermediate supports will be required to support the steel beam 22 while the concrete is wet, but the need for intermediate supports is ultimately a design choice.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

L'invention concerne un système d'ossature structurelle (10) comprenant des poutres en U (16) qui supportent des composants plate-forme (12) métalliques reliés par l'addition d'un matériau de solidification (24), tel que du béton coulé. En variante, un système d'ossature structurelle (10) est créé par ancrage des poutre en U (16) dans des colonnes verticales (14), par fixation de sections plancher (12) entre les poutres (15, 16), par la coulée d'un matériau de solidification (24) à l'intérieur des poutres et sur les sections plancher métalliques, pour former un joint sensiblement rigide entre la poutre, les sections plancher, et les colonnes. Des variantes de modes de réalisation comprennent une couche de liaison (24) supplémentaire.
PCT/US2007/068152 2006-05-04 2007-05-03 Système d'ossature structurelle en composite et son procédé de construction Ceased WO2007131115A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74642906P 2006-05-04 2006-05-04
US60/746,429 2006-05-04

Publications (1)

Publication Number Publication Date
WO2007131115A1 true WO2007131115A1 (fr) 2007-11-15

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008022180B3 (de) * 2008-05-05 2009-11-26 Db Netz Ag Anordnung zur Ausbildung einer Rahmenecke einer Walzträger-in-Betonbauweise (WIB)
EP2689075A4 (fr) * 2011-03-23 2014-08-20 Entek Pty Ltd Poutre et procédé permettant de renforcer des dalles en béton
FR3013064A1 (fr) * 2013-11-12 2015-05-15 Gagnepark Structure mixte de construction
WO2017037106A1 (fr) * 2015-09-01 2017-03-09 Pfeifer Holding Gmbh & Co. Kg Poutre maîtresse pour structures de plancher, structure de plancher et procédé de fabrication
CN111549951A (zh) * 2020-05-20 2020-08-18 重庆渝建实业集团股份有限公司 一种压型钢拼装式组合楼板及其施工方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3608263A (en) * 1969-11-13 1971-09-28 Robertson Co H H Hanger tabs for sheet metal decking sections
US4741138A (en) * 1984-03-05 1988-05-03 Rongoe Jr James Girder system
FR2704253A1 (fr) * 1993-04-21 1994-10-28 Colombo Jean Michel Procédé de construction de bâtiments à ossature de béton armé.
US20020069598A1 (en) * 2000-12-08 2002-06-13 Housh Rahimzadeh Composite structural framing system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3608263A (en) * 1969-11-13 1971-09-28 Robertson Co H H Hanger tabs for sheet metal decking sections
US4741138A (en) * 1984-03-05 1988-05-03 Rongoe Jr James Girder system
FR2704253A1 (fr) * 1993-04-21 1994-10-28 Colombo Jean Michel Procédé de construction de bâtiments à ossature de béton armé.
US20020069598A1 (en) * 2000-12-08 2002-06-13 Housh Rahimzadeh Composite structural framing system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008022180B3 (de) * 2008-05-05 2009-11-26 Db Netz Ag Anordnung zur Ausbildung einer Rahmenecke einer Walzträger-in-Betonbauweise (WIB)
EP2689075A4 (fr) * 2011-03-23 2014-08-20 Entek Pty Ltd Poutre et procédé permettant de renforcer des dalles en béton
AU2012231786B2 (en) * 2011-03-23 2017-05-04 Entek Pty Ltd A beam and method for reinforcing concrete slabs
FR3013064A1 (fr) * 2013-11-12 2015-05-15 Gagnepark Structure mixte de construction
WO2017037106A1 (fr) * 2015-09-01 2017-03-09 Pfeifer Holding Gmbh & Co. Kg Poutre maîtresse pour structures de plancher, structure de plancher et procédé de fabrication
CN108291401A (zh) * 2015-09-01 2018-07-17 法尔福股份有限公司 用于天花板系统的支撑梁、天花板系统及其制造方法
US20180291626A1 (en) 2015-09-01 2018-10-11 Pfeifer Holding Gmbh & Co. Kg Supporting beam for ceiling systems, ceiling system and method for the production thereof
US10407910B2 (en) 2015-09-01 2019-09-10 Pfeifer Holding Gmbh & Co. Kg Supporting beam for slab systems, slab system and method for the production thereof
CN108291401B (zh) * 2015-09-01 2021-03-16 法尔福股份有限公司 用于天花板系统的支撑梁、天花板系统及其制造方法
EP3885506A1 (fr) * 2015-09-01 2021-09-29 Pfeifer Holding GmbH & Co. KG Poutre porteuse pour systèmes de plafond, système de plafond et son procédé de fabrication
CN111549951A (zh) * 2020-05-20 2020-08-18 重庆渝建实业集团股份有限公司 一种压型钢拼装式组合楼板及其施工方法

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