作　　者： ; (江波）;

机构地区： 华南理工大学建筑学院

出　　处： 《力学与实践》 2007年第6期27-31,43,共6页

摘　　要： 用有限元法分析了开口薄壁圆弧曲梁的非线性弹性屈曲,并通过对有限元计算结果的非线性回归分析,给出了开口薄壁曲梁极限承载力的实用估算公式. The stability of thin-walled structures is an important problem in civil engineering. In this paper, the nonlinear elastic buckling of the open thin-walled curved-beam is analyzed by using the finite element method. Through the nonlinear regression computation for a great number of Finite-Element results, a practical and simple formula is obtained, which can be used to estimate the ultimate bearing capacity of the open thin-walled curved beams.

关 键 词： 开口薄壁构件 曲梁 非线性屈曲 极限承载力

领　　域： [建筑科学]