Separation type foundation pit steel supporting system

Abstract

The invention discloses a separation type foundation pit steel supporting system. The separation type foundation pit steel supporting system comprises a separation type both-way supporting structure arranged in a foundation pit in an erected manner, foundation pit stand columns vertically supporting the both-way supporting structure, a vertical restraining structure vertically restraining the vertical distance of both-way steel supports, a high-low surrounding purline structure, surrounding purline connecting devices connected between high surrounding purlines and low surrounding purlines, and surrounding purline inclined supporting devices supported between the high surrounding purlines and the low surrounding purlines. According to the separation type foundation pit steel supporting system, vertical supporting of the vertical separation type foundation pit steel supports, horizontal surrounding purline supporting and vertical restraining between transverse steel supports and longitudinal steel supports can be achieved, integrity is good, and force transmission is reliable.

Description

technical field [0001] The invention relates to a foundation pit support structure, in particular to a detachable foundation pit steel support system. Background technique [0002] The horizontal steel support and the longitudinal steel support in the traditional foundation pit steel support are arranged on the same plane. Therefore, there is often the danger of being twisted at the intersection of the horizontal steel support and the longitudinal steel support, which is not conducive to the safe support of the foundation pit. . [0003] Therefore, in order to avoid the mutual interference of horizontal and vertical steel supports at the intersection joints, some foundation pit steel supports adopt a cross steel support structure that is detached from top to bottom, that is, the horizontal steel support and the longitudinal steel support are separated up and down, and the supports are set at two different levels. face. [0004] However, there are several problems in adopti...

AI Technical Summary

Problems solved by technology

[0006] Traditional steel braces cannot be adapted to the corner support of high and low steel purlins;

[0007] The traditional foundation pit steel column cannot be installed directly, and a special node connection structure needs to be set between the steel column and the two-way steel support;

[0008] The constraints between the horizontal steel support and the longitudinal steel support are completely lost, which makes the axial force difficult to control, the stability is weakened, and the support effect is reduced

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