铁道标准设计Issue(8)：102-106,107,6.
罕遇地震作用下高速铁路简支梁桥抗震性能分析
Study on Seismic Performance of High-speed Railway Simply-supported Girder Bridge under Strong Earthquake Motion
摘要
Abstract
The simply-supported girder bridges cover a vast majority of railway line, and the seismic performance of the bridges need to studied intensively. To further study the simply-supported girder of high-speed railway in West China, a nonlinear numerical analysis model is established on the basis of the fiber unit to simulate the pier. With suitable simulation hypotheses of the fixed bearing dynamics performance, the nonlinear time history analysis is conducted to study the elastic-plastic seismic response and the damage mode under rare earthquakes. The calculation results show that the damage degree of bridge pier below 20 m height in transverse direction of bridge is heavier than that in longitudinal direction. In general, the pier has a better seismic performance. In view of the bearing failure under strong earthquake motion, reasonable control of relative displacements between superstructure and the pier should be addressed in seismic design of simply-supported girder of high-speed railway.关键词
高速铁路/简支梁桥/抗震分析/非线性时程分析方法/纤维模型Key words
High-speed railway/Simply-supported girder bridge/Seismic analysis/Nonlinear time history analysis/Fiber model分类
交通工程引用本文复制引用
卢皓..罕遇地震作用下高速铁路简支梁桥抗震性能分析[J].铁道标准设计,2015,(8):102-106,107,6.基金项目
西部地区博士后人才资助计划(2014M562526XB) （2014M562526XB）
国家重点基础研究发展计划(2013CB036302) （2013CB036302）
国家科技支撑计划(2009BAG15B01) （2009BAG15B01）
