Assembly truss type foundation pit horizontal steel supporting structure and application thereof

Abstract

The invention provides an assembly truss type foundation pit horizontal steel supporting structure and application thereof. The assembly truss type foundation pit horizontal steel supporting structurecomprises connected truss standard sections and surrounding purlin, wherein each truss standard section is formed by connecting an I-steel rod and two circular steel pipes within the same plane according to a certain angle, every two adjacent I-steel rods are connected through a sealing plate, and every two adjacent round steel pipes are connected through a flange plate. The assembly truss type foundation pit horizontal steel supporting structure is clear in stress, reliable in connection, high in stability and convenient to construct; and the foundation pit horizontal steel supporting structure is recyclable and high in construction speed and overcomes the defects that a traditional reinforced concrete supporting structure is long in construction period, materials cannot be repeatedly used and noise and dust pollution are easily caused during detachment.

Description

technical field [0001] The invention relates to the field of building structures, and is mainly aimed at a foundation pit horizontal support structure, and more specifically relates to an assembled truss type foundation pit horizontal steel support structure and its application. Background technique [0002] The foundation pit refers to the space excavated from the ground downward for the construction of the underground part of the building (structure). The foundation pit support is to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit, and the support, reinforcement and protection measures adopted for the side wall of the foundation pit and the surrounding environment. [0003] Foundation pit support is a key step in the construction of foundation pit engineering. The earth pressure and water pressure generated by soil unloading will be borne by the support structure. The stability of the foundation pit is close...

AI Technical Summary

Problems solved by technology

The traditional reinforced concrete support has the advantages of flexible layout, high rigidity and good stability, but its disadvantages cannot be ignored, such as long construction period, non-recyclable materials, and easy generation of noise and dust pollution during demolition.

The traditional steel support support technology uses steel components such as steel pipes or section steel as the inner support of the foundation pit, which has the characteristics of recyclability, but has poor integrity, weak connections, and is prone to instability

[0005] At present, the support system in the prefabricated foundation pit mostly adopts steel pipe concrete, reinforced concrete and prefabricated concrete structures, and there are few studies on the support of prefabricated steel structures

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