CN220132955U - Tower crane foundation - Google Patents
Tower crane foundation Download PDFInfo
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- CN220132955U CN220132955U CN202320718986.0U CN202320718986U CN220132955U CN 220132955 U CN220132955 U CN 220132955U CN 202320718986 U CN202320718986 U CN 202320718986U CN 220132955 U CN220132955 U CN 220132955U
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- bearing platform
- cross beams
- tower crane
- tower
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- 230000006837 decompression Effects 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims 3
- 238000010276 construction Methods 0.000 abstract description 14
- 230000007812 deficiency Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 210000001503 joint Anatomy 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model relates to the technical field of building engineering, in particular to a tower crane foundation, which comprises a flexible backing plate and a foundation bearing platform provided with a connecting structure for connecting a tower body, wherein a plurality of cross beams which are arranged in a scattering mode by taking the foundation bearing platform as a center are fixed on the periphery of the foundation bearing platform, and the bottoms of one ends of the cross beams, which are far away from the foundation bearing platform, are provided with bosses protruding downwards so that the foundation bearing platform and the cross beams are arranged at intervals with the ground; the lower ends of the bosses are arranged opposite to the pile foundation or the wall body of the basement main body structure up and down; the flexible backing plates are arranged in the intervals between the foundation bearing platform and each beam and the ground, and the tower crane foundation can be erected after the basement is constructed, so that no construction joint exists between the tower crane foundation and the basement bottom plate; the pile foundation or the wall body of the basement structure provides supporting force for the tower crane foundation, and the arrangement of the flexible backing plate avoids the partial bearing capacity deficiency of the basement bottom plate caused by the fact that the vertical load of the tower crane is not considered in advance.
Description
Technical Field
The utility model relates to the technical field of constructional engineering, in particular to a tower crane foundation.
Background
The tower crane is an indispensable hoisting equipment on a high-rise building site, is used for hoisting construction raw materials such as steel bars, wood ribs, concrete, steel pipes and the like for construction, and can greatly improve the construction efficiency and reduce the safety accidents. The upper tower body of the tower crane performs reliable force transmission through the tower crane foundation, so that the self safety of the tower crane is ensured. The existing tower crane foundation often adopts a pile foundation bearing platform, the pile foundation bearing platform needs to be constructed before the main foundation is constructed, a construction joint is formed between the periphery of the pile foundation extending into the ground and a basement bottom plate, the existence of the construction joint is a main factor which causes that the quality of a building structure is not too high, and the construction joint is also an important factor that the building acceptance work cannot pass in time, so that the time of delivery is prolonged.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the pile foundation of the existing tower crane foundation needs to stretch in, so that a construction joint is formed between the periphery of the pile foundation and the basement bottom plate, and the quality of a building structure is adversely affected.
In order to solve the technical problems, the utility model aims to provide a tower crane foundation, which comprises a foundation pile cap and a flexible backing plate, wherein the foundation pile cap is provided with a connecting structure for connecting a tower body, a plurality of cross beams which are arranged in a scattering mode by taking the foundation pile cap as a center are fixed on the periphery of the foundation pile cap, the cross beams are arranged at intervals around the center of the foundation pile cap, the bottom of one end, away from the foundation pile cap, of each cross beam is provided with a boss protruding downwards, the lower end of each boss is abutted against the ground, and the foundation pile cap and each cross beam are arranged at intervals with the ground; the lower end of each boss is arranged opposite to the pile foundation or the wall body of the basement main body structure up and down;
the flexible backing plates are arranged in the intervals between the base bearing platform and the cross beams and the ground, the lower ends of the flexible backing plates are in butt joint with the ground, and the upper ends of the flexible backing plates are in butt joint with the bottom surface of the base bearing platform and the bottom surface of the cross beams.
Preferably, a pressure reducing portion protruding outwards is fixed at one end of each beam, which is far away from the base bearing platform, and the lower end of each pressure reducing portion is abutted to the ground.
Preferably, the foundation bearing platform and each cross beam are integrally cast and formed reinforced concrete structures.
Preferably, the cross beams are arranged in pairs, two cross beams of the same pair are coaxially arranged, through-length steel bars are arranged in the cross beams of the same pair, the middle parts of the through-length steel bars are located in the base bearing platform, and two ends of the through-length steel bars extend to one end, away from the base bearing platform, of the two cross beams of the same pair respectively.
Preferably, the connecting structure is a plurality of anchor bolts buried in the foundation pile cap.
Preferably, the lower end of each anchor bolt is provided with an anti-pulling part protruding to the outer side of each anchor bolt.
Preferably, each of the anti-pulling portions is a hook bent toward one side of each of the anchor bolts.
Preferably, the flexible backing plate is a foam plate.
Compared with the prior art, the utility model has the beneficial effects that:
the tower crane foundation comprises a foundation bearing platform and a flexible backing plate, wherein the foundation bearing platform is provided with a connecting structure for connecting a tower body, a plurality of cross beams which are arranged in a scattering mode by taking the foundation bearing platform as a center are fixed on the periphery of the foundation bearing platform, the cross beams are arranged at intervals around the center of the foundation bearing platform, bosses which are downwards protruded are arranged at the bottoms of one ends of the cross beams, far away from the foundation bearing platform, of the cross beams, the lower ends of the bosses are abutted against the ground, and therefore the foundation bearing platform and the cross beams are arranged at intervals with the ground; the lower ends of the bosses are arranged opposite to the pile foundation or the wall body of the basement main body structure up and down; the flexible backing plate is arranged in the interval between the foundation bearing platform and each cross beam and the ground, the lower end of the flexible backing plate is abutted with the ground, and the upper end of the flexible backing plate is abutted with the bottom surface of the foundation bearing platform and the bottom surface of each cross beam. Therefore, the tower crane foundation can be erected after the basement is constructed, a pile foundation penetrating into the basement is not required to be arranged, a construction joint does not exist between the tower crane foundation and the basement bottom plate, supporting force is provided for the tower crane foundation through the pile foundation or the wall body of the basement structure, and the arrangement of the flexible backing plate avoids the defect of partial bearing capacity of the basement bottom plate caused by the fact that vertical load of the tower crane is not considered in advance.
Drawings
FIG. 1 is a top plan view of the foundation of the tower crane of the present utility model;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
in the figure, 101, pile foundation; 102. a wall body; 200. a tower body; 1. a base bearing platform; 2. a flexible backing plate; 3. a cross beam; 31. a decompression section; 4. a foot anchor bolt; 41. an anti-pulling part.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. It should be understood that the terms "first," "second," and the like are used herein to describe various information, but such information should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the utility model.
The preferred embodiment of the tower crane foundation comprises a foundation bearing platform 1 and a flexible backing plate 2, wherein the foundation bearing platform 1 is provided with a connecting structure for connecting a tower body 200, a plurality of cross beams 3 which are arranged in a scattering mode by taking the foundation bearing platform 1 as a center are fixed on the periphery of the foundation bearing platform 1, the cross beams 3 are arranged at intervals around the center of the foundation bearing platform 1, bosses which are downwards protruded are arranged at the bottoms of one ends of the cross beams 3, which are far away from the foundation bearing platform 1, and the lower ends of the bosses are abutted against the ground so that the foundation bearing platform 1 and the cross beams 3 are arranged at intervals with the ground; the lower ends of the bosses are arranged opposite to the pile foundation 101 or the wall body 102 of the basement main body structure up and down; the flexible backing plate 2 is arranged in the interval between the foundation bearing platform 1 and each cross beam 3 and the ground, the lower end of the flexible backing plate 2 is in butt joint with the ground, and the upper end of the flexible backing plate 2 is in butt joint with the bottom surface of the foundation bearing platform 1 and the bottom surface of each cross beam; therefore, the tower crane foundation can be erected after the basement is constructed, a pile foundation penetrating into the basement is not required to be arranged, a construction joint does not exist between the tower crane foundation and the basement bottom plate, supporting force is provided for the tower crane foundation through the pile foundation 101 or the wall body 102 of the basement structure, and the arrangement of the flexible backing plate 2 avoids the defect of partial bearing capacity of the basement bottom plate caused by the fact that the vertical load of the tower crane is not considered in advance. The flexible backing plate 2 of the utility model can be arranged on the ground before the foundation pile cap 1 and the cross beams 3 are poured, and then the foundation pile cap 1 and the cross beams 3 are poured. The flexible backing plate 2 can play a role of a core plate, so that the ground of the foundation pile cap 1 forms a groove with a downward opening, and the pressure overload applied to the basement bottom plate from the middle part of the foundation pile cap 1 is avoided when the load borne by the foundation pile cap 1 is large; in addition, the tower crane foundation does not need to reinforce and reform the basement bottom plate which is already constructed, thereby ensuring the safety of the existing structure and the simple construction, and being detachable in the later period so as not to influence the use of the internal space of the garage layer; the tower crane foundation is not basically influenced by main body structural arrangement and construction conditions, has strong arrangement flexibility, can realize the requirement of arranging the tower crane at any construction stage, can be applied to places where the conventional tower crane foundation is difficult to apply at present, and has wider application scenes and good economic benefit. For example, when the subway upper cover building is constructed, the tower crane foundation can be arranged on the constructed cover plate layer, the tower crane load is directly transferred to the vertical structural column through the foundation beam and then transferred to the main foundation below the cover plate layer, the transfer is reliable, and the safety problem that the subway facility and subway operation are affected by the conventional tower crane foundation below the cover plate layer is avoided.
Wherein, each crossbeam 3 is kept away from the one end of basic cushion cap 1 and all is fixed with the decompression portion 31 of outside protrusion, and the lower extreme of each decompression portion 31 all is with ground butt. Specifically, the pressure reducing portion 31 is an armpit disposed at one end of the beam 3 away from the foundation pile cap 1, and the pressure reducing portion 31 increases the contact area between one end of the beam 3 away from the foundation pile cap 1 and the pile foundation 101 or the wall 102 of the basement structure, reduces the stress borne by the pile foundation 101 or the wall 102 of the basement structure, and avoids deformation of the pile foundation 101 or the wall 102 of the basement structure due to overlarge stress.
In this embodiment, the base platform 1 and each cross beam 3 are integrally cast reinforced concrete structures. Each beam 3 is arranged in pairs, the two beams 3 of the same pair are coaxially arranged, through-length steel bars are arranged in the two beams 3 of the same pair, the middle parts of the through-length steel bars are positioned in the base bearing platform 1, and two ends of the through-length steel bars respectively extend to one ends, far away from the base bearing platform 1, of the two beams 3 of the same pair. Specifically, the crossbeam 3 is equipped with two pairs, and one of them and another pair of cross arrangement of two pairs of crossbeams 3 are X type, through setting up X type foundation beam as the atress roof beam that bears the vertical load of tower crane, the junction at X type foundation beam constructively sets up basic cushion cap 1, satisfies the pre-buried requirement of tower crane rag bolt on the one hand, on the other hand increases tower crane foundation structure anti-roll over ability as far as, and X type foundation beam bears the whole vertical load of tower crane during operation, and the vertical load of tower crane passes through X type foundation beam and directly transmits the pile foundation of peripheral existing structure, and the power transmission route is simple direct.
In this embodiment, the connection structure is a plurality of anchor bolts 4 buried in the foundation base.
The lower end of each anchor bolt 4 is provided with an anti-pulling part protruding to the outer side of each anchor bolt 4.
Specifically, each anti-pulling part is a hook bent to one side of each anchor bolt 4; the flexible backing plate 2 is a foam board, and the further flexible backing plate 2 is a high strength foam board.
In summary, the preferred embodiment of the tower crane foundation of the present utility model includes a base platform 1 and a flexible backing plate 2, the base platform 1 is provided with a connection structure for connecting the tower body 200, a plurality of beams 3 arranged in a scattering manner with the base platform 1 as the center are fixed on the periphery of the base platform 1, each beam 3 is arranged at intervals around the center of the base platform 1, the bottom of one end of each beam 3 away from the base platform 1 is provided with a boss protruding downwards, and the lower end of each boss is abutted with the ground, so that the base platform 1 and each beam 3 are arranged at intervals with the ground; the lower ends of the bosses are arranged opposite to the pile foundation 101 or the wall body 102 of the basement main body structure up and down; the flexible backing plate 2 is arranged in the interval between the foundation bearing platform 1 and each cross beam 3 and the ground, the lower end of the flexible backing plate 2 is in butt joint with the ground, and the upper end of the flexible backing plate 2 is in butt joint with the bottom surface of the foundation bearing platform 1 and the bottom surface of each cross beam; therefore, the tower crane foundation can be erected after the basement is constructed, a pile foundation penetrating into the basement is not required to be arranged, a construction joint does not exist between the tower crane foundation and the basement bottom plate, supporting force is provided for the tower crane foundation through the pile foundation 101 or the wall body 102 of the basement structure, and the arrangement of the flexible backing plate 2 avoids the defect of partial bearing capacity of the basement bottom plate caused by the fact that the vertical load of the tower crane is not considered in advance.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (8)
1. The tower crane foundation is characterized by comprising a foundation bearing platform (1) and a flexible backing plate (2), wherein the foundation bearing platform (1) is provided with a connecting structure for connecting a tower body (200), a plurality of cross beams (3) which are arranged in a scattering mode by taking the foundation bearing platform (1) as a center are fixed on the periphery of the foundation bearing platform (1), the cross beams (3) are arranged at intervals around the center of the foundation bearing platform (1), bosses which are downwards protruded are arranged at the bottoms of one ends of the cross beams (3) far away from the foundation bearing platform (1), and the lower ends of the bosses are abutted to the ground so that the foundation bearing platform (1) and the cross beams (3) are arranged at intervals with the ground; the lower end of each boss is arranged opposite to the pile foundation (101) or the wall body (102) of the basement main body structure up and down;
the flexible backing plates (2) are arranged in the intervals between the foundation pile caps (1) and the cross beams (3) and the ground, the lower ends of the flexible backing plates (2) are abutted to the ground, and the upper ends of the flexible backing plates (2) are abutted to the bottom surfaces of the foundation pile caps (1) and the bottom surfaces of the cross beams (3).
2. Tower crane foundation according to claim 1, characterized in that the end of each beam (3) remote from the foundation slab (1) is fixed with a decompression section (31) protruding outwards, the lower end of each decompression section (31) being in abutment with the ground.
3. Tower foundation according to claim 1, characterised in that the foundation platform (1) and the beams (3) are integrally cast reinforced concrete structures.
4. A tower crane foundation according to claim 3, characterised in that each of the cross beams (3) is arranged in pairs, the two cross beams (3) of the same pair are coaxially arranged, the inside of the two cross beams (3) of the same pair is provided with a through-length reinforcing bar, the middle part of the through-length reinforcing bar is positioned in the foundation pile cap (1), and the two ends of the through-length reinforcing bar extend to one end of the two cross beams (3) of the same pair, which is far away from the foundation pile cap (1), respectively.
5. Tower foundation according to claim 1, characterised in that the connection structure is a plurality of anchor bolts (4) embedded in the foundation slab.
6. The tower crane foundation according to claim 5, wherein the lower end of each of the anchor bolts (4) is provided with an anti-pulling portion (41) protruding outward of each of the anchor bolts (4).
7. The tower foundation according to claim 6, wherein each of said pull-out preventing portions (41) is a hook bent toward one side of each of said anchor bolts (4).
8. Tower foundation according to claim 1, characterised in that the flexible mat (2) is a foam board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320718986.0U CN220132955U (en) | 2023-04-03 | 2023-04-03 | Tower crane foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320718986.0U CN220132955U (en) | 2023-04-03 | 2023-04-03 | Tower crane foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220132955U true CN220132955U (en) | 2023-12-05 |
Family
ID=88955802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320718986.0U Active CN220132955U (en) | 2023-04-03 | 2023-04-03 | Tower crane foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220132955U (en) |
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2023
- 2023-04-03 CN CN202320718986.0U patent/CN220132955U/en active Active
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| GR01 | Patent grant |