吉林兰旗松花江大桥抗震分析与研究

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英文篇名：Aseismatic Research on LanQi SongHua River Bridge 中文刊名：公路交通科技 英文刊名：Journal of Highway and Transportation Research and Development 作者：宋鑫 ; 邱文亮 英文作者：SONG Xin~1 ; QIU Wen-liang~2(1.Beijing General Municipal and Design Institute ; Beijing 100045 ; China ; 2.Dalian University of Technology Bridge Engineering Design and Research Institute ; Liaoning Dalian 116024 ; China) 中文关键词：斜拉桥 ; 动力特性 ; 地震反应 ; 弹性约束刚度 英文关键词：Cable-stayed bridge ; Dynamic character ; Seismic response ; Elastic restriction stiffness 出版日期：2006-03-30 机构：北京市市政工程设计研究总院,大连理工大学桥梁研究所 北京100045,辽宁大连116024 年：2006 期：03 出版单位：公路交通科技

摘要

以吉林兰旗松花江大桥为例,建立了半飘浮体系斜拉桥的有限元模型,研究了半飘浮体系斜拉桥的动力特性、地震反应。针对斜拉桥的内力和位移往往是相互矛盾的这一特点,采用反应谱和时程分析法进一步研究了桥塔和主梁间的纵向弹性约束对动力特性、地震反应的影响,得出了本桥弹性约束刚度的取值范围和原则,并对抗震设计提出建议。
Based on LanQi SongHua River Bridge,the dynamic character and seismic response of the half floating structural system were investigated by using space finite element model.In the light of the controdiction between the inner force and deformation of cable-stayed bridge ,the paper analyzed the influence of longitudinal elastic restriction on dynamic character and seismic response by response spectrum and time history method.Some advice about aseismatic design of this bridge,the principle and range of the elastic constraint stiffness value were brought forward.

引文

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