Method and system for integral lifting of asymmetric inner ring truss and cable dome

Abstract

The invention relates to a method and system for integral lifting of an asymmetric inner ring truss and a cable dome. The method comprises the steps that the inner ring truss and the cable dome are formed by assembling, and the cable dome is connected with the inner ring truss; a plurality of lifting frames are arranged at intervals along the position where the inner ring truss is to be installedand fixed to the ground, and the lifting frames are connected with each other; a plurality of lifting devices are fixed to the top parts of the corresponding lifting frames, and the lifting devices are connected with the inner ring truss correspondingly; a plurality of traction devices are fixed to the top parts of the corresponding lifting frames, and the traction devices are connected with the cable dome correspondingly; the lifting devices are used to lift the inner ring truss up horizontally, the traction devices are used for stretching the cable dome during the process of lifting the inner ring truss, and radial traction of the cable dome is carried out through the traction devices, so that the horizontal force is applied to the inner ring truss through the cable dome to control the horizontal displacement of the inner ring truss; and lifting of the inner ring truss and stretching of the cable dome are carried out alternately until the inner ring truss reaches the design elevation.

Description

technical field [0001] The invention relates to the field of building construction, in particular to an overall lifting method and system for an asymmetric inner ring truss and a cable dome. Background technique [0002] The canopy system of large sports venues often adopts a cable dome structure. The large-opening sunflower-shaped cable dome structure includes a support structure, an outer ring grid, a large opening cable dome, and an inner ring truss. , the height is 6.1m~12.5m, the self-weight of the inner ring truss is 700t, and the overall lifting weight of the inner ring truss and the cable dome reaches 1607t, and the span is large and the weight is heavy, and the cross coordinated lifting is difficult, so it cannot be lifted by traditional lifting brackets. [0003] Chinese patent CN101446135A discloses a kind of super-high-altitude super-long giant beam truss method overall lifting system and its construction method, see figure 1 It shows the schematic diagram of th...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the prior art, provide an asymmetric inner ring truss and cable dome integral lifting method and its system, and solve the problem of lifting due to the asymmetrical structure of the inner ring truss and uneven gravity distribution in the prior art. During the process, there will be displacement, rotation and offset in the plane, which is easy to collide with the lifting frame, and there are potential safety hazards

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