铁路桥梁制动力调节体系的研究

英文篇名：Study on brake forces adaptive system for railway bridge
中文刊名：铁道学报
英文刊名：Journal of The China Railway Society
作者：张俊平 ; 高向宇 ; 周福霖 ; 廖蜀樵
英文作者：ZHANG Jun ping 1 ; GAO Xiang yu 1 ; ZHOU Fu lin 1 ; LIAO Shu qiao 2 ( 1School of Civil Engineering ; Guangzhou University ; Guangzhou 510405 ; China ; 2Railway First Survey and Design Institute ; Lanzhou 730000 ; China)
中文关键词：铁路桥梁 ; 铅芯橡胶支座 ; 制动力 ; 地震响应 ; 振动台试验
英文关键词：railway bridge ; lead rubber bearing ; brake forces ; earthquake response ; shaking table test
出版日期：2002-06-10
机构：广州大学土木工程学院,铁道第一勘察设计院,广州大学土木工程学院,铁道第一勘察设计院广东广州510405 ,甘肃兰州730000 ,广东广州510405 ,甘肃兰州730000
年：2002
期：03
出版单位：铁道学报

摘要

基于铅芯橡胶支座的性能 ,提出利用铅芯屈服前刚度合理调节列车制动力、利用铅芯屈服后刚度进行隔震的思路 ,并通过静力试验、动力特性测试及模拟地震振动台试验予以验证。试验结果表明 :设置橡胶支座后 ,可以有效地调整各墩台的综合刚度 ,按设计意图合理分配制动力 ;与传统支座桥梁相比 ,橡胶支座多跨简支模型桥梁的动力反应呈全桥一致反应 ,隔震效果显著 ,地震响应得以大幅度减小。
Based on the performance of lead rubber bearing(LRB), this paper proposes that the non yielded stiffness may be utilized to adapt brake forces properly, and the post yielded stiffness to isolate earthquake for railway bridge. This idea is verified by static test, dynamic characteristic test and simulated earthquake shaking table test. The results of model bridge test show that: LRB can effectively adapt the comprehensive stiffness of pier and abutment, and properly distribute brake forces according to design intention, the dynamic reactions of multi span simple support beams with LRB are identical in the whole bridge, the earthquake response is greatly reduced by LRB, and the isolation effect is remarkable compared with bridges with traditional bearing.

引文

[1]王绍先.液压传递列车制动力的研究[R].铁道第一勘察设计院,1983.
    [2]许克宾.桥梁制动力液压穿体装置试验研究[C].全国桥梁学术会议论文集,上海:同济大学出版社,1992.
    [3]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
    [4]日本建筑学会免震构造委员会,免震构造研究和设计[S].1996.
    [5]AhmadiH R,et al.HighDampingNaturalRubber forSeismicIsolationBearing[C].Proc. ofConference onStructuralMechanical inReactorTechnology,Tokyo,1991.
    [6]王松涛,曹资.现代抗震设计方法[M].北京:中国建筑工业出版社,1997.
    [7]广州大学,铁道第一勘察设计院.铁路桥梁隔震体系的试验研究[R].1998.