Underground temporary fold line steel frame supporting system and construction method

Abstract

The invention discloses an underground temporary fold line steel frame supporting system and a construction method, and relates to the technical field of mechanical construction. The underground temporary fold line steel frame supporting system comprises a foundation pit underground continuous wall, a bottom plate is arranged at the bottom of the foundation pit underground continuous wall, floor slabs are arranged above the bottom plate, and permanent structure columns are arranged among the floor slabs, a plurality of supporting points are arranged on the bottom face of the floor slab on thelowest layer in the center line direction of the floor slab on the lowest layer, arch-shaped temporary supporting assemblies are arranged on the two sides, between the floor slab on the lowest layer and the bottom plate, of the supporting points, and the arch-shaped temporary supporting assemblies and the floor slabs are only connected at the supporting points. In order to solve the problem of high construction cost in the prior art, the construction cost is effectively reduced by reducing repeated configuration of reinforcing steel bars and circulation use of full scaffolds by the undergroundtemporary fold line steel frame supporting system and the construction method.

Description

technical field [0001] The invention relates to the technical field of mechanical construction, more specifically, it relates to a support system and a construction method for underground temporary broken-line steel frames. Background technique [0002] Considering that the basement of the station is also used as the initial assembly channel of the large round shield, the construction stage requires a column-free space. Under normal circumstances, temporary vertical support systems such as temporary steel columns and steel beams are used to meet the requirements of column-free temporary working conditions. Stress requirements. Mainly have the following deficiencies: [0003] 1. Under the temporary working conditions without columns, the stress state of the temporary structure is inconsistent with the stress state of the permanent structure. The reinforcement of the structure needs to take into account both the temporary working conditions and the permanent working condition...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of high construction cost in the prior art, the object of the present invention is to provide a support system and a construction method for underground temporary broken-line steel frames, so that the force of the temporary structure system is consistent with the force of the permanent structure system, reducing repeated configuration. Reinforcement, reduce construction cost

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