Truss type profile steel supporting system for foundation pit: Fid-Bau Portal

Truss type profile steel supporting system for foundation pit

QU ZISHUN / WU SHENSHEN / ZHANG JULIAN

The invention discloses a foundation pit truss type profile steel supporting system which comprises at least two supporting beams, at least two transverse tie bars and at least one oblique tie bar, the two supporting beams are arranged in parallel, the two transverse tie bars are arranged in parallel and are perpendicular to the supporting beams, the two transverse tie bars are arranged between the two supporting beams, and the oblique tie bars are arranged between the two supporting beams. One end of the transverse tie bar is connected with one of the supporting beams through a right-angle connecting piece, the other end of the transverse tie bar is connected with the other supporting beam through an oblique angle connecting piece, the two oblique angle connecting pieces are connected with the two supporting beams respectively, and the oblique tie bar is arranged obliquely. The two ends of the oblique tie bar are connected to the two oblique angle connecting pieces respectively, and the oblique tie bar, the two transverse tie bars and the two supporting beams are all located on the same horizontal plane. The oblique tie bars, the two transverse tie bars and the two supporting beams are all located on the same horizontal plane through the right-angle connecting pieces and the oblique angle connecting pieces, and the rigidity of the large-span supporting horizontal plane is improved.

本发明公开一种基坑桁架式型钢支撑系统，包括：至少两支撑梁、至少两横向系杆和至少一斜向系杆，两所述支撑梁平行设置，两所述横向系杆平行设置，并与所述支撑梁垂直，且两所述横向系杆设于两所述支撑梁之间，所述横向系杆的一端通过直角连接件与其中一所述支撑梁连接、另一端通过斜角连接件与另一所述支撑梁连接，且两所述斜角连接件分别与两所述支撑梁连接，所述斜向系杆呈倾斜设置，且所述斜向系杆的两端分别连接在两所述斜角连接件上，且所述斜向系杆、两所述横向系杆、两所述支撑梁均位于同一水平面上。本发明通过直角连接件以及斜角连接件使斜向系杆、两横向系杆、两支撑梁均位于同一水平面上，提高了大跨度支撑水平平面刚度。

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