Based on a stadium project in Tianchang City,Anhui Province,this paper studies the zonal synchronous unloading method of large-span spatial pipe truss steel roof,puts forward the zonal syn-chronous unloading scheme,and carries out real-time dynamic monitoring of the whole unloading process of steel roof.Finite element analysis was used to simulate the whole construction process,and the field measured data and numerical simulation results were compared and analyzed.The roof struc-ture was in a safe and stable state during the unloading process,and the unloading was successfully completed.The variation of stress and displacement during roof unloading is within the design range,and the finite element analysis agrees well with the measured results.The research results can provide reference for the design,application and construction process monitoring of other large-span spatial pipe truss roof unloading schemes.
large-span steel structurefinite element analysiszonal synchronous unloading
维普
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