变截面连续箱梁的扭转分析

本文用有限元法研究变截面连续箱梁的约束扭转。对钱塘江二桥铁路箱 形梁的试验模型进行了空间分析。用三角形单元将模型离散，并用子结 构法降低方程的阶数。文章分析了梁的内力分布和跨中横隔板的作用。 所编程序可用于由薄板构成的名种类型的空间结构分析。 

Analysis of Non-Prismatic Continuous Box Girders under Non-Symmetric Loading

The paper presents the results of the analysis of non-prismatic continuous box girders in restrained torsion by the finite-element method, The behaviour under symmetric and non-symmetric loa- ding is discussed with the help of numerical examples. The paper also describes the effects of midspan cross diaphragm on stress distribution and deformation of such girders.