空间网壳结构弹塑性地震响应及抗震性能分析

Investigation on Dynamic Response and Characteristics of Space Shells

首次利用圆管截面空间梁系弹塑性本构关系，综合有限分割有限元法、Netwark逐步积分法和Euler一次Newton－Raphson迭代法，成功地对空间网壳结构弹塑性地震响应和抗震性能进行研究，并编制了相应的非线性有限元动力分析程序。通过对一个典型球壳算例的分析，验证了理论推导和有限元程序的正确性，并得到有关网壳结构抗震性能的一些结论。

This paper, for the first time, synthesizes finite - cut finite - element method,Newmark Step - by - step integral method and Euler - once Newton - Raphson method to deal with investigation on elastic - plastic dynamic response and characteristics of space shells. The space shell is make up of many tubes. These tubes have special stress - strain relation. Also, the author of this paper has developed a non -linear dynamaic finite -element a nalysis program successfully. By means of researching on a representative dome carefully, the correction of the theory and program are proved. Some conclusions about dynamic response and characteristics of space shells are produced.