铁道标准设计Issue(3)：43-47,5.
铁路桥梁减隔震支座设计及试制
Design and Trial Production of Seismic Absorption and Isolation Bearings for Railway Bridge
摘要
Abstract
In combination with the requirements on seismic resistance of a super major bridge on Yellow River on Baotou - Xi'an Railway, and in allusion to the seismic absorption and isolation bearings for railway bridge to do experiment and research, the new type of seismic absorption and isolation bearings were designed and developed, which not only can meet the operational requirements of railway bridge but also can reduce the seismic force effectively. Meanwhile, the experimental test for these trial-produced bearings was carried out, including both the sliding bearings and the fixed bearings. And then the experiment results show that, the hysteresis curve of the bearing is plump, with a larger equivalent damping ratio, so the ability of seismic absorption and isolation of these bearings are good. The results also show that, the regularity of the hysteresis curve of the bearing is better, with very good repeatability, so the design requirements of the yield stiffness can be satisfied. The author draws conclusion that, by using these seismic absorption and isolation bearings in high intensity earthquake region, not only the bridge seismic design issues can be solved, but also the project cost can be effectively reduced, so these bearings have very good popularization value.关键词
铁路桥梁/抗震/双球面/减隔震支座/滞回曲线/等效阻尼比Key words
railway bridge/ seismic resistance/ double spherical surface/ seismic absorption and isolation bearings/ hysteretic curve/ equivalent damping ratio分类
交通工程引用本文复制引用
辛兵..铁路桥梁减隔震支座设计及试制[J].铁道标准设计,2013,(3):43-47,5.基金项目
铁道部科技研究开发计划项目(2006G038) （2006G038）
