Research on roof structure design of main building of Hainan Bank Headquarters Building Project
Large-scale headquarters-style office buildings often adopt large-span roofs to construct tall indoor atriums.Taking a specific design project as an example,the design,seismic response analysis,performance target and construction simulation analysis of the atrium roof with ring truss and folded plate roof structure were introduced.The overall three-dimensional model with energy-dissipated was established using SATWE,Paco and MIDAS Gen programs.The influence of the roof on the structural integrity was investigated by the story-drift index of the structure under the overall model with roof and the sub-tower model without roof.According to the finite element analysis results of the roof,the section design was carried out.Through the construction simulation calculation and construction process monitoring of the lifting construction,the overall lifting safety was ensured.The analysis results show that the ring truss and folded plate roof structure of the project have good in-plane stiffness.After rigid connection with the main structure,the integrity of the structure is increased.When the large-span roof structure is assembled on the ground and then lifted as a whole,the construction simulation analysis should be carried out,and the lifting stages should be closely monitored to ensure the engineering quality and structural safety.
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