摘要
本文充分考虑了悬索结构大挠度变形几何非线性反应特征,在动力反应有限元理论分析中完善了索单元刚度和拟荷载项表达式,优化了计算方法.对与动力分析直接相关的索网阻尼特性及其对地震反应影响做了深入研究,并给出了常见索网屋盖结构地震反应及主要参数影响规律.在以上研究基础上,对悬索结构地震反应分析与设计提出几点新建议.
The finite element analysis method of dynamic response for cable suspended structures was further improved in this paper. The geometrically nonlinear characteristic is fully taken into account in the derivation of expressions of the stiffness matrix for a cable element and the pseudo loading vector. The damping behavior and the influense of parameters on seismic response of cable networkes were made a thorough investigation and study. Some useful conclusions for aseismic analysis were given.
出处
《建筑结构》
CSCD
北大核心
1996年第1期33-38,共6页
Building Structure
关键词
悬索结构
几何非线性
地震反应
动力分析
suspended cable structure
geometrical nonlinearity
seismic response
damping characteristics
