A kind of construction method of suspended steel structure

Abstract

The invention provides a construction method for a suspended steel structure, comprising: installing the cantilevered steel beams on each floor from bottom to top, according to the pre-acquired preset setting positions and preset specifications of the temporary cable-stayed bracing on each floor and temporary stay; according to the pre-acquired preset setting position and preset specification of the temporary support, a temporary support for supporting the top cantilevered steel truss is installed on the top surface of the cantilevered steel beam at the topmost floor; The top cantilevered steel trusses are installed above the cantilevered steel beams located at the topmost floor to form a stable frame; the hanging steel trusses are installed on the top surfaces of the cantilevered steel beams on each floor layer by layer from top to bottom. Columns; after installing all the suspenders, unload the temporary support and the temporary stay. The construction method provided by the invention can meet the stress requirements of the suspending column, ensure that the construction is safe and controllable, the quality and precision of the construction can meet the design requirements, the construction efficiency is improved, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of steel structure engineering construction, in particular to a construction method of a suspended steel structure. Background technique [0002] In the field of large-span steel structure city hall construction, the installation of suspended steel structures has always been a major problem in the construction field. The suspended steel structure is usually arranged on the periphery of the main structure to meet the lower space requirements or to create a special façade architectural form. The suspended steel structure is usually provided with a top-level cantilevered steel truss at the top, and the lower cantilevered steel beam is suspended through a suspender or a tie rod to form a floor structure. If the suspender or tie rod has a certain inclination angle, the The stress system of the cantilevered steel beam will be more complex, and the requirements for construction accuracy will be higher. [0003] T...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a construction method for suspending steel structures to solve the problem that the construction method for suspending steel structures in the prior art adopts a bottom-up method, which cannot meet the requirements that the suspension columns can only be subjected to tensile stress. The force requirements of compressive stress, and a large number of support measures need to be erected during construction, which will easily lead to confusion in lap joints, difficulty in organization and coordination, and reduced construction efficiency. When the support measures are unloaded, some structures are prone to large deformation and Problems Affecting Construction Quality

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