摘要
基于薄壁杆件理论,分析了薄壁箱梁弯曲剪流和约束扭转翘曲剪流计算时的翘曲连续性条件.从翘曲连续性条件出发,推导了薄壁箱梁约束扭转翘曲剪流的一般公式,此外,还指出了有关文献中的错误并进行了更正.最后对一个悬臂箱梁的约束扭转翘曲剪流进行了计算比较.
On the basis of the theory of thimwalled member, the continuity of warping in analysis of bending shearing flow and warping shearing flow in thin-walled box-girder is studied. With the continuity condition of warping, the formula of warping shearing flow in restrained torsion of thin-walled box-girder is established. The error in relevent references is pointed out and corrected. The warping shearing flow in a cantilever box girder under restrained torsion is calculated.
出处
《力学与实践》
CSCD
北大核心
2009年第5期26-29,共4页
Mechanics in Engineering
基金
甘肃省自然科学基金(3ZS042-B25-032)
甘肃省高等学校研究生导师科研项目(0804-09)
关键词
薄壁箱梁
约束扭转
翘曲变形
剪力流
thin-walled box-girder, restrained torsion, warping deformation, shearing flow
