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铁路简支梁桥减隔震支座应用研究
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摘要
目前,减隔震技术在我国铁路桥梁上虽有应用,但由于我国桥梁减隔震技术应用较晚,相关计算分析及设计理论方面仍显不足。本文以典型的铁路简支梁桥为研究对象,应用通用有限元分析软件SAP2000对地震激励下的桥梁结构系统进行非线性时程分析,探索目前在简支梁上应用广泛的钢阻尼器和摩擦摆支座的减隔震效果,并对两种装置的特性进行了分析比较,为合理选择减隔震措施提供依据。
Even though Seismic isolation technology has been used on railway bridge in China,related computational analysis and design theory is still not enough because the bridge isolation technology used lately in our country.In this paper,we take the typical railway simply supported beam bridge as the research object,and do nonlinear time history analysis of bridge structure system under earthquake excitation by using general finite element analysis software SAP2000.This paper also analyses the seismic isolation effect of Steel damper and Friction pendulum isolation device which are widely used on simple supported beam,and compares the characteristics of the two devices,which provide a basis for the reasonable selection of seismic isolation measures.
引文
[1]中华人民共和国国家标准.GB 50111—2006铁路工程抗震设计规范[S].北京:中华人民共和国建设部,2006.National Standards of the People's Public of China.GB 50111—2006 Code For Seismic Design of Railway Engineering[S].Beijing:China Planning Press,2006.
    [2]杨风利,钟铁毅,夏禾.铁路简支梁桥减隔震支座设计参数的优化研究[J].铁道学报,2006(3):129-132.Yang Fengli,Zhong Tiyi,Xia He.Study on optimization of the design parameter of seismic absorption and isolation bearing for railway simple supported beam bridges[J].Journal of the China Railway Society,2006(3):129-132.
    [3]庄军生.桥梁减震、隔震支座和装置[M].中国铁道出版社.Zhuang Junsheng.Bridge shock absorption and isolation bearing and gear.China Rail way publishing house.
    [4]范立础,王志强.桥梁减隔震设计[M].北京:人民交通出版社,2001.Fan Lichu,Wang Zhiqiang.Seismic Isolation Design for Bridges[M].Beijing:China Communications Press,2001.

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