Steel strand support part of foundation pit support internal support system

Abstract

The invention discloses a steel strand supporting part of a foundation pit support inner supporting system. The steel strand supporting part comprises H-type steel, a square bottom plate is welded to the lower end face of the H-type steel, four flange holes are formed in the square bottom plate, a square connecting plate is welded to the upper end face of the H-type steel, reinforcing plates are arranged in grooves in the two sides of the H-type steel, three guide plates parallel to one another are fixedly welded to the upper portion of the square connecting plate, the three guide plates vertically correspond to the reinforcing plates and two side wing plates of the H-type steel respectively, two arch-shaped plates are disposed between the three guide plates, the two arch-shaped side edges of the arch-shaped plates are fixedly welded to the guide plates on the two sides respectively, the two bottom edges of the arch-shaped plates are fixedly welded to the square connecting plate, and a plurality of limiting insertion holes used for limiting block rods to insert are formed in the positions, above the arch-shaped plates, of the guide plates. According to the technical scheme, the steel strand supporting part is convenient to assemble and disassemble and can be used repeatedly, and the aims of saving construction cost and facilitating construction are achieved.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a steel strand support component of an internal support system for foundation pit support. Background technique [0002] In soft soil deep foundation pit engineering, reinforced concrete or steel pipe supports the support structure. In order to reduce the deformation of the foundation pit and increase the stability, the commonly used methods are: increase the size of the reinforced concrete purlin street surface, increase the number of steel pipe supports, Reduce spacing etc. But this will greatly increase the consumption of building materials and also reduce the effective construction space in the foundation pit. Since the steel support structure currently used mainly uses a single section steel or steel pipe as a support beam, there is no effective connection between each section steel or steel pipe, and it cannot work as a composite structure, so their support stiff...

AI Technical Summary

Problems solved by technology

Since the steel support structure currently used mainly uses a single section steel or steel pipe as a support beam, there is no effective connection between each section steel or steel pipe, and it cannot work as a composite structure, so their support stiffness is relatively low. The force it can withstand is relatively limited. For foundation pits with large spans, it is difficult to control their deformation with the current steel support support

Because many of these supports are made according to the requirements of on-site construction, there is no standardized connection size, and the purpose of interchangeability and universal use between various parts cannot be achieved. After the foundation pit construction is completed, most of the support parts have become disposable consumables. , cannot be reused

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