钢网壳弹塑性地震反应分析

Elastic-Plastic Seismic Response Analysis of Lattice Shells

利用结构弹塑性地震反应理论，采用理想弹塑性模型，通过结构非线性分析程序，对双层柱面网壳进行了地震作用下的弹塑性分析．对杆件进入塑性后网壳的地震响应和抗震性能进行了较详细的研究，同时给出了对网壳工程设计有指导意义的结论．

A theoretical study is presented on elastic-plastic seismic performance of lattice shells.Using a nonlinear computer program, the seismic response analysis of a double-layer cylindrical lattice shell is carried cut A detailed analysis is performed to investigate the elastic-plastic performance of the shell under strong ground motions. The elastic-plastic behaviors for displacements of nodes and stresses of members of the structure are discussed. Some suggestions are given for guiding the design of lattice shell in seismic regions.