华中科技大学学报：自然科学版2012，Vol.40Issue(1)：77-81,5.
高速铁路铅芯橡胶支座桥梁隔震研究
Seismic isolation application to high-speed railway bridges with lead rubber bearings
陈令坤 1蒋丽忠 1王丽萍 1余志武1
作者信息
- 1. 中南大学土木工程学院高速铁路建造技术国家工程实验室,湖南长沙410075
- 折叠
摘要
Abstract
Aimed at the key technology of railway bridge seismic isolated designs, the equivalent linear model and the calculation method of main dynamic parameters of the lead rubber bearings were presented. The finite element model of the vehicle-bridge system was established. The dynamic responses of pre-seismic and post-seismic isolation of bridge were calculated and the seismic isolation effect of the lead rubber bearings was analyzed. The calculation results indicate that the lead rubber bearings has excellent performance in seismic isolation and energy dissipation, the bending moment and shear force of pier bottom of bridge can be effectively decreased, and the displacement of grider and bearings do not increase when dynamic parameters of the lead rubber bearings are reasonably determined.关键词
桥梁/高速铁路/隔震/铅芯橡胶支座/隔震Key words
bridge/high-speed railway/seismic isolation/lead rubber bearings/seismic isolation分类
交通工程引用本文复制引用
陈令坤,蒋丽忠,王丽萍,余志武..高速铁路铅芯橡胶支座桥梁隔震研究[J].华中科技大学学报：自然科学版,2012,40(1):77-81,5.
