摘要
本文对柱面网壳结构的非线性受力性能进行了详细的研究。为此，推导了适合于弹性大位移分析的空间杆单元的切线刚度矩阵，采用零位移增量范数法对结构变形进行全过程跟踪分析，并编制了相应的计算程序。通过对若干考题及单、双层柱面网壳的计算分析，验证了本文理论的正确可靠，得到了一些有价值的结论。
Abstract The geometrically nonlinear stability analysis of the cylindrical reticulated shell is studied in detail,and so a tangent stiffness matrix applicable to the space bar element in elastic large-displacement analysis isestablished by use of a zero-displacement increment norm method to trace and analyse the geometrical nonlin-ear behaviours of a structure,and a geometrically nonlinear finite element computer program is also compiledin this paper. By computing and analysing several examples and single/double layer cylindrical reticulatedshells,the reliabity and accuracy of the given theory are verified,and some useful conclusions are obtained.
出处
《空间结构》
CSCD
1995年第3期14-22,52,共10页
Spatial Structures
