[1]王军文,湛敏,邓琴,等.三跨斜交简支梁桥地震旋转机理及斜度影响研究[J].哈尔滨工程大学学报,2018,39(08):1357-1362.[doi:10.11990/jheu.201702015]
 WANG Junwen,ZHAN Min,DENG Qin,et al.Study on earthquake rotation mechanism and skew degree influence on three-span simply supported skewed girder bridge[J].hebgcdxxb,2018,39(08):1357-1362.[doi:10.11990/jheu.201702015]
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三跨斜交简支梁桥地震旋转机理及斜度影响研究(/HTML)
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
39
期数:
2018年08期
页码:
1357-1362
栏目:
出版日期:
2018-08-05

文章信息/Info

Title:
Study on earthquake rotation mechanism and skew degree influence on three-span simply supported skewed girder bridge
作者:
王军文1 湛敏2 邓琴3 石岩4
1. 石家庄铁道大学 土木工程学院, 河北 石家庄 050043;
2. 中铁第五勘察设计院集团有限公司, 北京 102600;
3. 北京市轨道交通运营管理有限公司, 北京 100068;
4. 兰州理工大学 土木工程学院, 甘肃 兰州 730050
Author(s):
WANG Junwen1 ZHAN Min2 DENG Qin3 SHI Yan4
1. School of Civil Engineering, Shijiazhuang Railway University, Shijiazhuang 050043, China;
2. China Railway Fifth Survey and Design Institute Group Co., Ltd., Beijing 102600, China;
3. Beijing MTR Operation Administration Corporation, Beijing 100068, China;
4. School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China
关键词:
斜交桥简支梁地震旋转机理碰撞模态分析法时程分析法
分类号:
U448.41;U442.55
DOI:
10.11990/jheu.201702015
文献标志码:
A
摘要:
为了解地震作用下斜交简支梁桥桥面转动的影响因素,利用OpenSees软件建立3×30 m斜交简支梁桥简化动力计算模型,采用模态分析法和时程分析法计算结构的动力特性和非线性地震反应,从振动模态与动力响应两个层面,分析了三跨斜交简支梁桥桥面旋转机理及斜度对桥面旋转的影响。结果表明:忽略结构碰撞作用时,桥面地震反应由结构自身的动力特性决定,表现为边跨旋转幅度大于中跨,平移幅度小于中跨;考虑结构碰撞作用时,纵向碰撞力矩会加剧桥面的旋转,同时,横向碰撞力矩会抑制桥面的旋转,使桥面转角在考虑结构纵、横向碰撞联合作用时比仅考虑纵向碰撞作用时偏小;中跨桥面转角由碰撞力矩决定,边跨桥面转角由结构自身动力特性和碰撞力矩共同决定,在斜度大于0°时,碰撞力矩占主要因素。

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-02-16。
基金项目:国家自然科学基金项目(51508347);河北省自然科学基金项目(E2015210038);中国博士后科学基金项目(2016M592908XB).
作者简介:王军文(1971-),男,教授,博士生导师.
通讯作者:王军文,E-mail:wjunwen2901@163.com
更新日期/Last Update: 2018-09-05