期刊文献+

地震动峰值速度与峰值加速度对重力坝动力响应影响 预览

Influence of Peak Velocity and Peak Acceleration of Seismic Ground Motion on Dynamic Response of Gravity Dam
在线阅读 下载PDF
收藏 分享 导出
摘要 基于有限元结合应力型黏弹性人工边界的方法,建立了丰满水电站重建工程挡水坝段有限元数值模型,分析了地震动0°输入时不同峰值速度和峰值加速度对重力坝地震反应的影响。结果表明,地震动峰值速度对坝体参考点位移、应力的影响程度明显大于地震动峰值加速度;随着地震动峰值速度的增加,坝体各参考点顺河向位移和竖直向位移都呈现出逐渐增加的趋势;第一主应力和第三主应力分别在坝踵和坝趾处影响程度大。 Based on the method of finite element combined with stress-type viscoelastic artificial boundary,the finite element numerical model of the retaining dam section of Fengman Hydropower Station Reconstruction Project is established. The seismic responses of gravity dam with different peak velocity and peak acceleration at 0 and 10 degrees input of ground motion are analyzed respectively. The results show that,(a) the influence of peak velocity of ground motion on the displacement and stress of dam reference points is significantly greater than the peak acceleration of ground motion;(b) with the increase of peak velocity of ground motion,the horizontal displacements and vertical displacements of dam reference points present a gradual increasing trend;and (c) the first principal stress and the third principal stress is the biggest at dam heel and dam toe respectively.
作者 胡良明 朱军福 孙奔博 HU Liangming;ZHU Junfu;SUN Benbo(School of Water Conservancy and Environment Engineering,Zhengzhou University,Zhengzhou 450001,Henan,China;School of Architecture and Engineering,Tianjin University,Tianjin 300072,China)
出处 《水力发电》 北大核心 2019年第7期66-71,共6页 Water Power
关键词 峰值速度 峰值加速度 重力坝 位移 应力 动力响应 丰满水电站重建工程 peak velocity peak acceleration gravity dam displacement stress dynamic response Fengman Hydropower Station Reconstruction Project
作者简介 胡良明(1963—),男,河南郑州人,教授,博士,研究方向为水工结构工程数值模拟及优化设计研究.
  • 相关文献

参考文献11

二级参考文献93

共引文献90

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈