Assembled pressurized tower crane foundation structure

Abstract

The invention discloses an assembled pressurized tower crane foundation structure. The assembled pressurized tower crane foundation structure comprises tower crane bases, a cross-shaped steel beam, stressed steel box beams, bolts and saddle weights; and the stressed steel box beams are each of a rectangular rigid structure, the bottoms of the stressed steel box beams are fixedly connected with a basement frame column structure through the bolts, the four ends of the cross-shaped steel beam are placed on the stressed steel box beams correspondingly, the tower crane bases are placed on the stressed steel box beams on the two sides of the cross-shaped steel beam, and the saddle weights are stacked on the tower crane bases on the two sides of the cross-shaped steel beam correspondingly. By adopting the saddle weights and the stressed steel box beams capable of being precast as foundation bearing components of a tower crane and through fixed connection with the basement frame column structure through the bolts, the problems that a traditional pipe pile structure is long in construction time, unable to be reused and large in construction difficulty are avoided, the problems that a precast reinforced concrete beam is inconvenient to transfer, prone to being damaged and poor in shock resistance are also avoided, and the assembled pressurized tower crane foundation structure has the characteristics of being rapid and convenient to disassemble and assemble, capable of being repeatedly transferred and used, good in shock resistance, safe and reliable.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to an assembled ballast type tower crane foundation structure which is convenient for disassembly and assembly, can be used repeatedly, has good anti-seismic performance, and is safe and reliable. Background technique [0002] Tower crane is the most commonly used lifting equipment on construction sites, also known as "tower crane". The vertical and horizontal conveying of materials and the installation of building components are also commonly used in pouring large volumes of concrete in water conservancy projects. The tower crane hangs heavy objects by the hanging arm, which has a very large dumping moment, and has high requirements for the bearing capacity of the foundation. Therefore, the tower crane foundation structure is a necessary condition for maintaining the safe operation of the tower crane. [0003] The base structure of the tower crane is generally made o...

AI Technical Summary

Problems solved by technology

However, for tower cranes that need to be installed in an environment where the basement has been completed and put into commercial use, the common practice is cast-in-place piles, steel pipe piles + lattice steel columns, steel pipe columns + concrete caps or steel platforms. Although all these construction methods can meet the requirements of the tower crane foundation structure, due to the complex installation of the combined foundation, high cost and poor seismic performance, it is impossible to construct cast-in-situ piles or steel pipe piles when encountering a multi-storey basement and the basement floor has been completed. , the foundation’s pull-out resistance, torsion resistance, and load-bearing capacity cannot be guaranteed, and it will take up part of the space, affecting the use of the basement that has been put into use.

In this regard, in the prior art, an integral reinforced concrete beam is also used as the support of the tower crane, and the support column at the bottom of the reinforced concrete beam is supported on the frame column structure of the basement, although it shortens the construction time and can be used repeatedly. , but its rigid reinforced concrete beam structure not only has poor seismic performance, but also is directly supported on the frame-column structure in the basement through supporting columns, resulting in poor connection reliability and weak anti-slip ability, which will further reduce its seismic performance

In addition, prefabricated and assembled reinforced concrete structures are also used as tower crane foundations in the prior art. Although the above-mentioned problems of non-reusability, poor seismic performance and difficult construction have been overcome, due to its split-assembled reinforced concrete structure, it is not compatible with the basement frame. The connection of the column structure is connected by an anti-slip shaft, which not only has poor reliability, but also makes disassembly and assembly difficult, and its reinforced concrete structure has poor toughness, which is easily damaged during use and handling, and the use cost is also high

For this reason, in order to solve the problems existing in the above-mentioned reinforced concrete beams in the prior art, there are also concrete briquettes pressed on the longitudinal beams, thereby pressing the longitudinal beams and cross beams to be tightly pressed and fixed to form the tower crane foundation, and the tower crane foundation passes through the support at the bottom. The seat is set on the roof of the basement. Although it is easy to disassemble, low in cost and not easy to damage, its stacked structure has poor connection reliability, weak anti-slip ability, and poor overall seismic performance.

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