摘要
研究了减隔震技术对提高桥梁结构抗震安全性的作用 ,采用有限元动力非线性分析程序 ,对设置板式橡胶支座、铅芯橡胶支座的桥梁结构进行了非线性时程分析 ,分析中考虑了桥梁结构与减隔震支座的非线性特性。结果表明铅芯橡胶支座较板式橡胶支座具有较好的抗震性能 ,同时针对采用铅芯橡胶支座的减隔震桥梁 。
Effects of isolation bearings on the seismic response of bridges are studied. The nonlinear dynamic response of bridges equipped with isolation bearings are analyzed by the FEM method. In the analysis, the nonlinear properties of bridges and isolation bearings are considered. The results of analysis show that bridges isolated with lead rubber bearings (LRB) perform better than those isolated with normal rubber bearings (RB) in an earthquake. The impacts of LRB parameters on the seismic response of bridges are studied.
出处
《中国安全科学学报》
CAS
CSCD
2002年第5期71-75,共5页
China Safety Science Journal
基金
国家自然科学基金资助项目 (基金号 :5 99780 0 2 )
关键词
减隔震支座
桥梁结构
安全性
抗震
Isolated bridge Lead rubber bearings Normal rubber bearings
