摘要
提出了一种采用铅芯橡胶支座进行大跨度斜拉桥减震分析方法;分别建立了大跨度斜拉桥、铅芯橡胶支座的空间有限元分析模型,采用时程分析方法计算了桥梁地震响应;用正交设计法对铅芯橡胶支座进行了参数优化。研究表明:经过优化设计的铅芯橡胶支座能有效的减小斜拉桥在地震下响应。
Reducing vibration by lead-rubber bearings was proposed in long-span cable-stayed bridge.Spatial finite element models of a long-span cable-stayed bridge and LRBs were established respectively.Seismic responses of the bridge were calculated through time-history analysis;parameter optimum of LRBs was carried out by orthogonal design.The results indicated that LRBs with optimization design could effectively reduce seismic response of the cable-stayed bridge.
出处
《重庆交通大学学报（自然科学版）》
CAS
北大核心
2011年第2期200-203,共4页
Journal of Chongqing Jiaotong University(Natural Science)
基金
湖南省自然科学基金项目(03JJY3085)
教育部留学回国人员科研启动基金项目(教外司留[2003]14号)
关键词
大跨度斜拉桥
铅芯橡胶支座
正交设计
减震
long-span cable-stayed bridge
lead-rubber bearings（LRBs）
orthogonal design
seismic reduction
