CN219240605U - Steel-concrete combined tower crane foundation - Google Patents
Steel-concrete combined tower crane foundation Download PDFInfo
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- CN219240605U CN219240605U CN202320199912.0U CN202320199912U CN219240605U CN 219240605 U CN219240605 U CN 219240605U CN 202320199912 U CN202320199912 U CN 202320199912U CN 219240605 U CN219240605 U CN 219240605U
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Abstract
The utility model relates to a steel-concrete combined tower crane foundation, which comprises 4 concrete filling piles, wherein the upper end of each concrete filling pile is sleeved with a steel pile casing, the lower end of each steel pile casing is buried below the ground for a certain length, the upper end of each steel pile casing protrudes above the ground, the steel pile casings are welded in parallel, a cover plate is welded at the nozzle of each steel pile casing, two spandrel girders are welded between the 4 cover plates in a crisscross manner, the top surfaces of the two spandrel girders are flush, and a tower crane base is anchored on each spandrel girder. The utility model has small occupied area, small project amount of later land reclamation and high speed; no additional construction equipment is needed, and the cost is low.
Description
Technical Field
The utility model relates to the technical field of bridge construction, in particular to a steel-concrete combined tower crane foundation structure for installing a bridge construction tower crane.
Background
Bridge construction sites typically employ tower cranes as hoisting equipment for large-scale components. The tower crane needs to be supported on a solid foundation, and the tower crane foundation needs to meet a certain vertical bearing capacity and has enough shearing resistance. The common tower crane foundation is generally a concrete foundation, but under the weak geological condition, the common concrete foundation can not meet the requirement of the bearing capacity of the tower crane, if the foundation is enlarged by adopting concrete, the construction cost is higher, the workload of breaking concrete is larger in the later-stage land reclamation, and a large amount of concrete waste is caused; another commonly used tower crane foundation is a steel pipe pile foundation, a plurality of steel pipe piles are inserted and driven to an underground bearing layer, a bearing beam is erected on the steel pipe piles to install a tower crane, the steel pipe pile foundation is suitable for weak geological conditions, but under the condition that the steel pipe piles are not required to be inserted and driven in other working procedures of engineering, pile vibrating equipment is independently put into the construction tower crane foundation, and the construction cost is relatively high.
Disclosure of Invention
The utility model aims to solve the problems and provide a steel-concrete combined tower crane foundation, which reduces the construction cost of the tower crane foundation on the premise of meeting the bearing capacity requirement of the tower crane.
The technical scheme of the utility model is as follows:
a steel-concrete combined tower crane foundation is characterized in that: including 4 concrete filling piles according to 4 summit settings of square, a steel pile casing is established to every concrete filling pile upper end cover, the steel pile casing lower extreme buries certain length below ground, and the upper end is protruding above ground, the concrete placement of concrete filling pile is to the nozzle of steel pile casing, 4 welding 4 parallel connection according to square between 4 steel pile casings, a apron is welded to the nozzle of every steel pile casing, two spandrel girders are welded along square two diagonal directions between 4 apron, and the top surface of two spandrel girders flushes, anchors the tower crane base on the two spandrel girders.
The utility model adopts the combined structure of the steel pile casing and the pile foundation, the pile foundation can meet the vertical load requirement of the tower crane, the steel pile casing can be used for arranging parallel connection among piles and welding the spandrel girder, and the shearing requirement of the tower crane foundation can be met. Compared with a concrete expansion foundation, the utility model has small occupied area and small post-land reclamation engineering quantity; compared with the steel pipe pile foundation, the pile foundation can directly adopt pile foundation construction equipment of a bridge construction site, and extra equipment cost is not required.
Drawings
FIG. 1 is a schematic elevational view of the present utility model;
fig. 2 is a schematic plan view of the present utility model.
Detailed Description
As shown in fig. 1 and 2, the utility model comprises 4 concrete filling piles 1 arranged according to 4 vertexes of a square, wherein a steel pile casing 2 is sleeved at the upper end of each concrete filling pile, the lower end of each steel pile casing 2 is buried below the ground for a certain length, the upper end of each steel pile casing 2 protrudes above the ground, the concrete of the concrete filling pile is poured into the cylinder mouth of each steel pile casing, 4 parallel joints 3 are welded among the 4 steel pile casings 2 according to 4 sides of the square, a cover plate 4 is welded at the cylinder mouth of each steel pile casing 2, two spandrel girders 5 are welded between the 4 cover plates along two diagonal directions of the square, the top surfaces of the two spandrel girders are flush, and tower crane bases 6 are anchored on the two spandrel girders 5.
The construction mode of the utility model is as follows:
burying a steel pile casing: 4 pile foundation positions are lofted out according to 4 vertexes of the square on the ground, 4 steel pile casings 2 are buried according to the 4 pile foundation positions, the length of each steel pile casing is at least 3m, and one half of the steel pile casings are buried underground;
and (3) constructing pile foundation: the drilling machine drills pile holes along the steel casing, the depth of the pile holes is determined according to geological conditions, and the pile holes are drilled below stratum bearing layers and meet the design bearing capacity requirement of pile foundations; the steel reinforcement cage below the pile hole is filled with concrete, the steel pile casing is not pulled out when the concrete is filled, the concrete is filled into the top opening of the steel pile casing, and the filling can be stopped until no floating slurry overflows, so that the steel pile casing 2 and the concrete of the pile foundation 1 are combined into a whole;
because the bridge engineering itself needs to construct a large amount of pile foundations, the tower crane pile foundations can be directly constructed by adopting bridge pile foundation construction equipment.
Parallel connection among piles: 4 parallel joints 3 are welded among the 4 steel protective cylinders, and the parallel joints adopt steel pipes; the parallel connection can be welded between the parts of the steel casings above the ground and between the parts below the bottom surface of the steel casings;
welding a cover plate: leveling the concrete of the top opening of each steel pile casing, welding a cover plate 4 at the top opening of the steel pile casing, and welding a stiffening plate between the bottom surface of the cover plate and the outer wall of the steel pile casing;
welding a spandrel girder: two spandrel girders 5 are welded in a crisscross manner between the 4 cover plates, and the spandrel girders are double-spliced or multi-spliced I-steel; firstly, a first spandrel girder 51 with a through length is welded between two cover plates in a diagonal direction, then a second spandrel girder 52 is welded between two cover plates in another diagonal direction, the second spandrel girder 52 is divided into two sections, one end of each section is welded with one cover plate, and the other end is welded with the side surface of the first spandrel girder so as to ensure that the top surfaces of the two spandrel girders are flush;
installing a tower crane base: the 4 bases 6 of the tower crane are symmetrically anchored on the two spandrel girders by taking the square center as the symmetry.
So far, the construction of the steel-concrete combined tower crane foundation is completed, and the tower crane section can be installed on the tower crane foundation.
After bridge construction is completed, when the tower crane foundation is broken, the pile foundation is excavated to the lower end of the steel pile casing, the pile foundations are transversely cut, the two spandrel girders and the 4 steel pile casings can be integrally lifted off by using a crane, the land reclamation speed is high, and the engineering quantity is small.
Claims (1)
1. A steel-concrete combined tower crane foundation is characterized in that: including 4 concrete filling piles according to 4 summit settings of square, a steel pile casing is established to every concrete filling pile upper end cover, the steel pile casing lower extreme buries certain length below ground, and the upper end is protruding above ground, the concrete placement of concrete filling pile is to the nozzle of steel pile casing, 4 welding 4 parallel connection according to square between 4 steel pile casings, a apron is welded to the nozzle of every steel pile casing, two spandrel girders are welded along square two diagonal directions between 4 apron, and the top surface of two spandrel girders flushes, anchors the tower crane base on the two spandrel girders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320199912.0U CN219240605U (en) | 2023-02-12 | 2023-02-12 | Steel-concrete combined tower crane foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320199912.0U CN219240605U (en) | 2023-02-12 | 2023-02-12 | Steel-concrete combined tower crane foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219240605U true CN219240605U (en) | 2023-06-23 |
Family
ID=86841030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320199912.0U Active CN219240605U (en) | 2023-02-12 | 2023-02-12 | Steel-concrete combined tower crane foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219240605U (en) |
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2023
- 2023-02-12 CN CN202320199912.0U patent/CN219240605U/en active Active
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