Abstract
Taking the steel canopy project of the main stage of Chengdu Open-air Music Square as the research object, the project analyzes the construction difficulty, tight schedule and high quality requirements of the steel canopy from the aspects of construction difficulties, installation methods and construction process; puts forward reasonable structure division and construction steps; at the same time, the project innovatively puts forward the large-scale inverted "7 At the same time, the project innovatively proposes a large inverted "7" truss structure lifting method and an anti-deformation structure and its lifting method for the lifting of hyperbolic mesh shell structure; and fully utilizes construction simulation analysis, monitoring and testing technology, etc., to ensure the safety and quality of the construction of the steel canopy. The results show that the overall deformation of the steel canopy structure after molding is small, the construction efficiency has been improved by 38%, and all the nodes docked with the curtain wall project are within the installation design allowable values. The research results provide technical references for the application of similar canopy structure construction in China in the future.
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