Flexural buckling theory and finite element verification of UHPC prestressed double T-section thin-wall beam based on plate-beam theory
At present,there are fewer theoretical studies on prestressed double T openings.Based on the theory of"plate-beam"and the principle of deformation decomposition,the flexural and torsional buckling of prestressed UHPC double T section beam is studied.The total potential energy equation under flexural and torsional buckling is derived,and the analytical solution of flexural and torsional buckling is given based on the principle of minimum potential energy.The correctness of the obtained solution is determined by ANSYS software,and the result of finite element calculation is analyzed.The results show that the analytical solution of flexural and torsional buckling is in good agreement with the finite element results,and the error is within-0.50％～1.44％.
double T sectionflexural and torsional buckling theoryplate-beam theoryfinite element
万方数据
维普
