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大跨度叠合梁斜拉桥多维多点非平稳随机地震响应分析

赵雷 刘宁国

赵雷, 刘宁国. 大跨度叠合梁斜拉桥多维多点非平稳随机地震响应分析[J]. 应用数学和力学, 2017, 38(1): 118-125. doi: 10.21656/1000-0887.370528
引用本文: 赵雷, 刘宁国. 大跨度叠合梁斜拉桥多维多点非平稳随机地震响应分析[J]. 应用数学和力学, 2017, 38(1): 118-125. doi: 10.21656/1000-0887.370528
ZHAO Lei, LIU Ning-guo. Non-Stationary Random Seismic Analysis of Large-Span Composite Beam Cable-Stayed Bridges Under Multi-Support and Multi-Dimentional Earthquake Excitations[J]. Applied Mathematics and Mechanics, 2017, 38(1): 118-125. doi: 10.21656/1000-0887.370528
Citation: ZHAO Lei, LIU Ning-guo. Non-Stationary Random Seismic Analysis of Large-Span Composite Beam Cable-Stayed Bridges Under Multi-Support and Multi-Dimentional Earthquake Excitations[J]. Applied Mathematics and Mechanics, 2017, 38(1): 118-125. doi: 10.21656/1000-0887.370528

大跨度叠合梁斜拉桥多维多点非平稳随机地震响应分析

doi: 10.21656/1000-0887.370528
基金项目: 国家自然科学基金(51178394)
详细信息
    作者简介:

    赵雷(1956—),男,教授,博士,博士生导师(通讯作者. E-mail: zlswjtuzl@163.com).

  • 中图分类号: TU311.3

Non-Stationary Random Seismic Analysis of Large-Span Composite Beam Cable-Stayed Bridges Under Multi-Support and Multi-Dimentional Earthquake Excitations

Funds: The National Natural Science Foundation of China(51178394)
  • 摘要: 为研究地震动非平稳特性对大跨度叠合梁斜拉桥随机地震响应的影响,采用绝对位移求解的虚拟激励法在通用有限元软件中对某座叠合梁斜拉桥进行多维多点非平稳随机地震响应分析.研究结果表明:采用绝对位移求解的虚拟激励法,能在通用有限元软件中高效地实现对大跨度叠合梁斜拉桥多维多点非平稳随机地震响应分析;设计中假定地震动平稳性,得到的结果偏于保守;行波效应对大跨度叠合梁斜拉桥结构响应有显著影响,考虑行波效应对主塔塔顶位移和塔底内力是有利的,但应注意其对主梁跨中位移和内力的不利影响.
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出版历程
  • 收稿日期:  2016-11-07
  • 修回日期:  2016-12-21
  • 刊出日期:  2017-01-15

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