Classifications

• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
  • E02D27/00—Foundations as substructures
  • E02D27/32—Foundations for special purposes
  • E02D27/42—Foundations for poles, masts or chimneys

Definitions

• the present invention relates to a construction tool, and more particularly to a tower crane foundation, and more particularly to a combined tower base that can be quickly spliced and reusable on site.
• tower cranes are an indispensable equipment in building construction.
• the tower foundation In order to prevent the overturning of tower cranes after loading, the tower foundation must be reinforced. Therefore, the traditional construction site must be constructed with reinforced concrete and a solid foundation, and then the tower cranes The foundation frame is fixed on the foundation. After the construction is completed, the foundation will be removed or covered. Therefore, the foundation has high cost and long manufacturing cycle. If it is dismantled, it also needs to waste a lot of manpower and material resources. Therefore, design a kind of site can be on site. Quickly assembled and reusable, stable, modular tower foundations are key to reducing construction costs and reducing tower crane installation time.
• the existing combined tower base usually has a square or cross-shaped center piece and a cross-arm extending in four directions, and the partial combined tower base also adds a number of transitions between the center piece and the end piece.
• these combined tower bases In order to extend the length of the cross arm, these combined tower bases not only have a large number of components, but also have troublesome processing and installation, and there are a plurality of stitching joints on the cross arm, which reduces the rigidity of the cross arm and has a safety hazard.
• the object of the present invention is to solve the problems that the existing tower crane has a long construction period, wastes building materials, has many combined tower base members, and has poor rigidity, and is designed to be directly installed and used on a flat site, and can be repeatedly used. , convenient transport tower base.
• a combined tower base characterized in that it consists of four detachable base blocks 1, each base block 1 consisting of a bottom plate 2 and a bearing block 3 projecting on the bottom plate 2, two of which are in one direction
• the load-bearing block 3 on the opposite base block 1 is retracted toward the other end along the splice end, and the sum of the lengths of the two load-bearing blocks 3 retracted and the width L1 of the load-bearing block 3 on the base block 1 of the other splice direction
• the load-bearing blocks 3 on the two base blocks 1 in the other direction are cantilevered in the direction of the splice end, and the sum of the lengths of the cantilever extensions of the two load-bearing blocks 3 and the corresponding base block 1
• the width L2 of 2 is matched; on the base block 1, there are two in one direction for fitting the connector to splicing the phases
• the load-bearing block 3 is composed of upper and lower parts, the lower part is integrally connected with the bottom plate 3, and the upper part is connected to the lower part by a connecting bolt.
• the upper and lower joint faces of the load-bearing block 3 are provided with an anti-slip concave-convex structure that cooperates with each other.
• the end surface of the bottom plate 2 of the two basic blocks 1 in one direction of the splicing is in a staggered structure
• the longitudinal through holes 4 and the lateral through holes 5 are both located on the bottom plate 2.
• a detachable connecting rib 7 is disposed between the adjacent base blocks 1.
• the connecting ribs 7 are connected to the base block by a bolt structure or by a snap structure.
• the non-splicing end of the bottom plate 2 of the base block 1 has a wing-like structure; the two directions formed by the two blocks of the base block are perpendicular to each other on the same horizontal plane.
• the connecting member is a steel cable or a steel rod.
• the two basic blocks in one direction are integrally connected structures and the vertical through holes may be omitted, and the two basic blocks in the other direction are separated or integrally connected, and two basic blocks in the other direction.
• the longitudinal through holes on the structure may be omitted when it is a unitary structure.
• the invention has the advantages of simple structure, convenient assembly and disassembly and transportation, and especially the use of steel cables to connect two basic blocks in the same direction, which is very convenient for on-site construction.
• the transport size can be reduced while ensuring that the tower base has sufficient support surfaces.
• the invention has reliable connection and good stability.
• the utility model has the advantages of small number of components, convenient processing and installation, and few joints, and the formed orthogonal cross-shaped tower base has good overall rigidity, safety and reliability.
• Figure 1 is a schematic exploded perspective view of the present invention.
• Figure 2 is a schematic top plan view of the present invention.
• Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
• Fig. 4 is a cross-sectional view taken along line BB of Fig. 2; detailed description
• a combined tower base consisting of four detachable base blocks 1, as shown in Fig. 1, the base block 1 is cast from reinforced concrete, wherein the connecting bolts or nuts for connecting to the base of the tower are Pre-buried in advance when casting.
• Each of the two base blocks constitutes one direction, and the base blocks in the two directions are connected in a single unit and should be orthogonal in the same horizontal plane.
• Each base block 1 is composed of a bottom plate 2 and a load-bearing block 3 projecting on the bottom plate 2.
• the load-bearing block 3 may adopt a one-piece structure or a split structure.
• the split structure When the split structure is adopted, it must pass through a pre-embedded nut, a screw or The bolts are connected by threads to form a load-bearing block 3 having a certain height.
• the upper and lower joint faces of the load-bearing block 3 are provided with an anti-slip anti-slip structure, as shown in Figs.
• the load-bearing blocks 3 on the two opposite base blocks 1 in one direction are retracted toward the other end along the splice end, and the sum of the lengths of the retraction of the two load-bearing blocks 3 is on the base block 1 of the other splice direction.
• the width L1 of the load-bearing block 3 is matched (that is, the sum of the lengths of the retraction should be not less than the width of the load-bearing block), and correspondingly, the load-bearing block 3 on the two base blocks 1 in the other direction cantilevered toward the splice end, and
• the sum of the lengths of the cantilever extensions of the two load-bearing blocks 3 is matched with the width L2 of the bottom plate of the corresponding base block 1 (ie, the sum of the lengths of the protruding ends is not less than the width of the corresponding bottom plate), as shown in FIG.
• the base block 1 is provided with longitudinal through holes 4 for fitting the connecting members (which may be steel cables or steel bars) to connect the two base blocks 1 in one direction of the splicing, as shown in FIG. 4, and the longitudinal through holes 4 on the base block 1 in the two directions are different from the bottom surface of the bottom plate 2 to prevent interference when the connector is worn, and at the same time, at least two ends are in contact with the two stitches.
• One base block 1 is provided for the other two ends A transverse through hole 5 in contact with the spliced connection through the base block, as shown in FIG.
• the end faces of the bottom plates 2 of the two basic blocks 1 in one direction of mutual contact and splicing are in a staggered splicing step structure 6 to improve the anti-overturning capability, as shown in FIG.
• the longitudinal through holes 4 and the lateral through holes 5 may be located on the bottom plate 2, or may be located entirely on the load block 3, or partially on the bottom plate 2, and partially on the load block 3.
• a detachable connecting rib 7 may be disposed between the adjacent base blocks 1 in the specific implementation, and the connecting ribs 7 are connected to the base block through the bolt structure or connected by the snap structure, It is also possible to design the non-splicing end of the bottom plate 2 of the base block 1 as a wing structure.
• the two basic blocks 1 in any direction can also be formed into a unitary structure, in which case the longitudinal through hole 4 can be omitted, at least whether the horizontal through hole 5 can be omitted, and the direction should be When the direction is engaged, the locking portion is determined at the upper portion or the lower portion, and the lateral through hole 5 should be retained when the direction is engaged, and the two basic blocks 1 in the other direction can be used as components.
• the body structure can also be made into a one-piece structure. When the unitary structure is formed, the longitudinal through hole 4 on the body can also be omitted, and the horizontal through hole 5 can be determined according to the actual situation.
• the size of the tower base is affected by the length of the transport vehicle, which may be smaller than the size of the tower base of the split block. Therefore, whether or not the integral structure is adopted should be based on the tower crane. The tonnage is determined.

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• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Mining & Mineral Resources (AREA)
• Paleontology (AREA)
• Civil Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Structural Engineering (AREA)
• Bridges Or Land Bridges (AREA)
• Suspension Of Electric Lines Or Cables (AREA)
• Joining Of Building Structures In Genera (AREA)
• Conveying And Assembling Of Building Elements In Situ (AREA)

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• 2012
  • 2012-02-28 CN CN201220068367.3U patent/CN202509515U/zh not_active Withdrawn - After Issue
  • 2012-02-28 CN CN201210047667.8A patent/CN102535507B/zh not_active Expired - Fee Related
  • 2012-03-14 WO PCT/CN2012/072312 patent/WO2013127102A1/fr not_active Ceased

Patent Citations (4)

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