考虑截面畸变的薄壁箱梁的弯曲稳定分析  

Buckling analysis of thin-walled box beams with distortion

作　　者：张寿玲[1] 辛克贵[1] 何铭华[1] 

机构地区：[1]清华大学土木工程系,结构工程与振动教育部重点实验室,北京100084

出　　处：《清华大学学报（自然科学版）》2010年第3期359-362,共4页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(50578085,50878117)

摘　　要：该文应用广义位移样条有限杆元法分析了薄壁箱梁横向弯曲稳定问题,并将计算结果与有限元软件ANSYS10进行了比较。数值算例表明:该方法适用于横向荷载作用下的薄壁箱梁的稳定分析,能够模拟薄壁箱梁横截面外轮廓线变形,具有精度高、收敛快、方便灵活等特点。Lateral buckling of a thin-walled box beam was analyzed using generalized variational spline finite member element method. The results agree well with solutions from ANSYS 10 with the results showing that the method is applicable to lateral buckling of thin-walled box beams for any boundary conditions with distortion o{ the cross section. The method is accurate, fast, and versatile.

关 键 词：薄壁箱梁 畸变 样条有限杆元法 稳定分析 广义坐标 

分 类 号：TU323[建筑科学—结构工程]