...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advances in Structural Engineering >Vehicle-bridge coupling dynamic response of sea-crossing railway bridge under correlated wind and wave conditions
【24h】

Vehicle-bridge coupling dynamic response of sea-crossing railway bridge under correlated wind and wave conditions

机译：相关风浪条件下跨海铁路桥梁的车桥耦合动力响应

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The sea-crossing railway bridge is exposed to a high risk of wind and wave, which threatens the safety of the bridge and railway. A wind-wave-vehicle-bridge dynamic analysis model for sea-crossing railway bridge under wind and wave loadings is developed by extending the previous wind-vehicle-bridge model. The developed wind-wave-vehicle-bridge model involves multipoint fluctuating wind field, irregular wave field, finite element model of the bridge, and mass-spring-damper model of the vehicle. The correlation between wind and wave is considered by an empirical curve derived based on field measurement. Static, buffeting, and self-excited wind forces on the bridge and vehicle are considered with coefficients obtained from wind tunnel tests. The wave forces on the bridge are calculated by Morison equation including stretching modification. The governing equations of the wind-wave-vehicle-bridge model are solved in time domain by Newmark-beta method to compute the dynamic response of bridge and vehicle. The dynamic response of bridge and vehicle is compared and discussed in both wind-wave-vehicle-bridge and wind-vehicle-bridge model. The performance of bridge and vehicle are finally evaluated. Studies of dynamic response under correlated wind and wave are found to be imperative for assessment of structural and vehicle safety and driving comfort of sea-crossing railway bridge.
机译：跨海铁路桥梁极易遭受风浪袭击，威胁到桥梁和铁路的安全。通过扩展以前的风车桥模型，建立了风浪荷载作用下跨海铁路桥梁的风波车桥动力学分析模型。所开发的风波-车辆-桥梁模型包括多点波动风场，不规则波场，桥梁的有限元模型以及车辆的质量弹簧-阻尼器模型。风和浪之间的相关性是通过基于现场测量得出的经验曲线来考虑的。考虑从风洞试验获得的系数来考虑桥梁和车辆上的静态，抖振和自激风力。桥梁上的波浪力通过包括拉伸修正在内的莫里森方程来计算。利用Newmark-beta方法在时域上求解风浪-车辆-桥梁模型的控制方程，以计算桥梁和车辆的动力响应。在风浪车桥模型和风车桥模型中对桥梁和车辆的动力响应进行了比较和讨论。最后评估桥梁和车辆的性能。研究发现，在相关风浪作用下进行动力响应研究对于评估跨海铁路桥梁的结构和车辆安全性以及驾驶舒适性至关重要。

著录项

  • 来源
    《Advances in Structural Engineering》 |2019年第4期|893-906|共14页
  • 作者

    Fang Chen; Li Yongle; Wei Kai; Zhang Jingyu; Liang Chunming;

  • 作者单位

    Southwest Jiaotong Univ, Dept Bridge Engn, 111 North 1st Sect,2nd Ring Rd, Chengdu 610031, Sichuan, Peoples R China;

    Southwest Jiaotong Univ, Dept Bridge Engn, 111 North 1st Sect,2nd Ring Rd, Chengdu 610031, Sichuan, Peoples R China;

    Southwest Jiaotong Univ, Dept Bridge Engn, 111 North 1st Sect,2nd Ring Rd, Chengdu 610031, Sichuan, Peoples R China;

    Southwest Jiaotong Univ, Dept Bridge Engn, 111 North 1st Sect,2nd Ring Rd, Chengdu 610031, Sichuan, Peoples R China;

    Southwest Jiaotong Univ, Dept Bridge Engn, 111 North 1st Sect,2nd Ring Rd, Chengdu 610031, Sichuan, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    correlated wind and wave; dynamic response; railway; sea-crossing bridge; vehicle-bridge coupling analysis;

    机译：相关风浪;动力响应;铁路;跨海桥梁;车桥耦合分析;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号