...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Bulletin of earthquake engineering >Effect of travelling waves on stochastic seismic response and dynamic reliability of a long-span bridge on soft soil
【24h】

Effect of travelling waves on stochastic seismic response and dynamic reliability of a long-span bridge on soft soil

机译：行程波对软土的长跨度桥随机地震反应及动态可靠性的影响

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

It is generally known that the variability of earthquake ground motion is mainly in time and space. To investigate the impact of this variability on the seismic performance of a long-span flexible structure, we discuss the seismic dynamic responses of a real bridge subjected to stochastic seismic ground motion. We incorporate the effect of wave passage by means of the method of probability density evolution based on dynamic time-history analysis from the perspective of stochastic dynamics. First, we introduce the theory of probability density evolution and a category of stochastic seismic model. We then conduct a series of deterministic seismic dynamic analyses of the bridge to establish the probability density equation. Eventually, we obtain the probability information at the level of the probability density function of the seismic response by solving the probability-density evolution equation. The results show that the impact of travelling waves on a long-span structure is related to the characteristics of the earthquake ground motion and the structure, and that travelling waves increase the variability of the seismic response.
机译：众所周知，地震地面运动的可变性主要是时间和空间。为了调查这种可变性对长跨度柔性结构的地震性能的影响，我们讨论了对随机地震地面运动的真正桥梁的地震动力响应。基于随机动力学的视角，通过基于动态时间历史分析的概率密度进化方法来掺入波段的效果。首先，我们介绍了概率密度进化和一类随机地震模型的理论。然后，我们进行一系列确定的桥梁的确定性地震动态分析，以建立概率密度方程。最终，通过求解概率密度进化方程，我们在地震响应概率密度函数的水平下获得概率信息。结果表明，行驶波对长跨度结构的影响与地震地面运动和结构的特性有关，并且行驶波提高了地震反应的可变性。

著录项

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