【摘要】 本文采用梁-柱理论,推导出空间梁单元的切线刚度矩阵,该矩阵是用超越函数表示的,对于位移的高阶项没有任何省略,因此可以认为是精确的,它能够适应各种复杂网壳结构的大位移全过程分析。更多还原

【Abstract】 In this paper, a tangent stiffness matrix of three dimensional beam elements is derived by using beam-column theory. This matrix can be considered to be precise because no higher order term in the displacement function is ignored. It has been proved that this matrix is suitable for the post-buckling analysis of the large and complex lattice shell structures.更多还原