Abstract：
Through the analysis of the steel structure installation and construction difficulties of spiral roof, the curvature of steel box girder hoisting, lifting, roof roof surface latticed shell slice lifting, deformation setting joint construction process, in-depth analysis and Study on spiral roof installed a new site, improve the construction progress, completed the roof from construction, component processing, pre-assembled, to block hoisting steel spiral shaped roof, forming the whole assembly, finally the temporary support smooth unloading, the entire installation construction process, choose the installation process practical and innovative technology, reduces the high amount of welding operation, improve the welding precision, to ensure the quality of construction and safety, shorten the construction period. In the unique structure of the roof, the process has a great promotional value, which provides a reference for similar engineering construction.
