摘要
采用有限元分析程序ANSYS,分别对带有约束屈曲支撑(Bckling Restrained Braces,简称BRBs)的单层柱面网壳、单层球面网壳进行动力时程响应分析,分别考虑了水平及竖向地震作用.比较各种情况下网壳节点位移和杆件内力变化情况,综合研究了约束屈层支撑在四边支承单层柱面网壳和单层球面网壳的适用性,探讨了如何布置约束屈层支撑,分析了约束屈层支撑减震性能.
Dynamic time-history response of cylindrical lattice and spherical shell have been carried out by FEM software-ANSYS. Horizontal and vertical earthquake action also has been considerded respectively. Vibration reducing performance of buckling restrained braces（BRBs） is concluded by comparison of nodal displacement and member＇s force of shells under different load cases. It shows that those BRBs installed properly in the corresponding shell can absorb and disspate energy input by earthquake effectively, reduce seismic response of shell. Shell installed BRBs properly is a promising vibration reducing structure system.
出处
《空间结构》
CSCD
北大核心
2009年第4期65-69,73,共6页
Spatial Structures
基金
国家自然科学基金资助项目(50678078)
甘肃省建设科技攻关项目(JK006-02)
关键词
约束屈曲支撑
柱面网壳
球面网壳
减震性能
buckling restrained braces
cylindrical lattice shell
spherical lattice shell
vibration reducing performance
