Taking the large-span intersecting beam string roof of a gymnasium in Zhuhai as the background.Analyzed and studied the technical problems faced during the roof construction process.Using Midas software for finite element three-dimensional simulation analysis.Dynamic simulation analysis of deformation of cross beam string under various working conditions.Optimized the sequence of prestressed ten-sioning and roof concrete pouring.Optimized the prestressed tensioning sequence and roof concrete pouring sequence to solve a series of problems caused by load superposition that affect construction quality and production safety.The deformation monitoring data of the beam string roof is consistent with the finite element simulation analysis results.
large spancrossbarbeam stringBIM technology3D simulationgraded tensioning