Long-span cantilever steel structure construction method

Abstract

The invention relates to a long-span cantilever steel structure construction method. A buckling supporting rod and a cantilever structure are included. The cantilever structure is connected to a supporting column through the buckling supporting rod. The construction method includes the following steps that an absolute coordinates virtual network of the buckling supporting rod and the cantilever structure is established on the computer, marking is conducted in a practical connecting point position of the cantilever structure; practical connecting point coordinates are measured on the scene through a total station, the practical connecting point coordinate are controlled, the cantilever structure and the buckling supporting rod are installed synchronously, and an installing position is controlled through the total station. According to the long-span cantilever steel structure construction method, the buckling supporting rod and the cantilever structure are installed synchronously, temporary fixing devices such as all kinds of jacks do not need to be installed and temporarily arranged, the cantilever structure does no need to conduct unloading, construction processes are reduced, construction efficiency is improved, construction cost is reduced, construction hidden danger is reduced, personal safety of construction personnel is ensured, and construction quality is improved.

Description

technical field [0001] The invention relates to a building construction method, in particular to a construction method of a large-span cantilevered steel structure. Background technique [0002] Large-span cantilevered steel structures need to be unloaded before complete installation. For example, large-scale stadium cantilevered structures need to be temporarily fixed by using temporary settings and various jacks. Unloading is carried out to achieve the overall stability of the structure. There are many requirements and procedures for unloading, and the requirements for measures, materials, and environmental conditions are relatively high. Unloading is the last process and the most important step in the long-span cantilevered steel structure. This traditional unloading method requires the ground to be leveled during construction; the fabrication and installation of temporary facilities occupy the construction land or affect other professional construction, and at the same ...

AI Technical Summary

Problems solved by technology

Unloading is the last process and the most important step in the long-span cantilevered steel structure. This traditional unloading method requires the ground to be leveled during construction; the fabrication and installation of temporary facilities occupy the construction land or affect other professional construction, and at the same time Involving project quality defects, progress lag, safety hazards, cost increases, etc.

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