薄壁曲线箱梁的畸变应力分析

Distortion Stress Analysis of Thin-walled Curved Box Girders

基于变分法的最小势能原理,应用弹性地基梁比拟法得出箱梁截面畸变角的微分方程,推导出了畸变角的解及畸变翘曲正应力,并通过曲线箱梁模型实验与计算结果进行了对比,验证了计算方法和计算结果的正确性。

Based on the principle of minimum potential energy variations methods ,the application of e‐lastic foundation beam analogy method box beam distortion angle differential equation ,deduced the solution distortion angle distortion and warping stress ,and through the curved box girder model ex‐periment and calculation results were compared ,validation of the computational method and the cor‐rectness of calculation results .