Installation method for steel reticulated shell and cable dome combined structure

Abstract

Disclosed is an installation method for a steel reticulated shell and cable dome combined structure. Hinged supports capable of rotating unidirectionally are arranged on outer ring beams, an installation support is arranged in the middle of a site, and part of rods of a steel reticulated shell are installed; a multipoint synchronous lifting device is arranged on the upper portion of the steel reticulated shell; an inner ring cable system of a dorsal cable net is connected with supporting rods, and an outer ring cable system is connected with the supports on the outer ring beams through auxiliary pulling cables; the lifting device on the upper portion of the steel reticulated shell lifts the supporting rods evenly, outer ring dorsal cables are pulled in the lifting process, the whole dorsal cable net keeping a loose state is lifted synchronously, ring cables and inclined cables at different installation heights are installed during the lifting, and after all inhaul cables are installed, the inclined cables of the outer rings can be pulled to be shaped; and remaining rods of the steel reticulated shell are mounted, and the reticulated shell is connected with a cable dome into a whole. According to the installation method for the steel reticulated shell and cable dome combined structure, difficulties of cable dome structure installation can be reduced effectively, and simultaneously, cross operation of steel reticulated shell and cable dome installation can be achieved, the construction period is reduced, and the cost is saved.

Description

technical field [0001] The invention relates to a method for rod installation and prestressed tension forming for the construction of a new type of steel reticulated shell and cable dome combined space structure in civil engineering construction, which belongs to the technical field of space prestressed steel structure construction and installation, especially It is an installation method for a combined structure of a steel reticulated shell and a cable dome. Background technique [0002] The traditional cable dome structure using membrane as roofing material has problems such as expensive membrane material, poor fireproof performance, difficulty in eliminating rain noise, poor thermal insulation performance, and relatively complicated cutting and laying process. In order to solve these problems, domestic scholars have proposed a new type of composite structure composed of a steel reticulated shell and a cable dome. Take advantage of the convenience of laying rigid roof pan...

AI Technical Summary

Problems solved by technology

In the known installation method of the combined structure of the steel reticulated shell and the cable dome, the installation of the cable dome structure and the prestressed tension forming construction are relatively difficult, and some cables may need to be forced into place by external forces exceeding the design cable force during the installation process , which is unfavorable to the force of the cables, struts and joints, and the safety of the installation and construction work is insufficient

At the same time, since the cable dome structure must be installed first, then the erection of the installation bracket and the installation of the upper steel reticulated shell can be carried out. The construction work cannot overlap, the construction period is longer, and the installation cost is higher.

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