...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Bulletin of earthquake engineering >Sensitivity of surface hazard to different factors and site response analysis approaches: a case study for a soft rock site
【24h】

Sensitivity of surface hazard to different factors and site response analysis approaches: a case study for a soft rock site

机译：表面危害对不同因素和地点反应分析方法的敏感性：软岩网站的案例研究

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

Near-surface effects for a soft rock site (average shear-wave velocity of the top 30m, Vs(30)approximate to 800m/s) for a proposed nuclear power station in the UK are integrated into the bedrock results of a probabilistic seismic hazard analysis(PSHA) by application of US Nuclear Regulatory Commission(USNRC) Approach 3 and employing a partially non-ergodic PSHA. The sensitivity of the surface hazard to the site response analysis method is assessed, employing both random vibration theory (RVT) and time series(TS) approaches. The effects of different assumptions relating to strong-motion duration, selection of target frequency in the surface uniform hazard spectrum(UHS) and the incorporation of the variability of site properties through Monte Carlo simulations are also quantified. The results show that for the examined stiff site, with response concentrated at high frequencies, the use of RVT site response analysis does not introduce a systematic bias in the low frequency ground motion predictions and the duration used in the definition of the input ground motions is demonstrated to have a secondary effect on the site response. The incorporation of the variability of site properties and the selection of the target frequencies in the convolution are shown to be important in the derivation of the uniform hazard spectrum.
机译：软岩位点的近表面效果（英国提出的核电站的拟议核电站的近30米的平均剪力波速度为前30米，VS（30）近似为800m / s）被纳入概率地震危害的基岩结果中通过应用美国核监管委员会（USNRC）方法3并雇用部分非遍历PSHA分析（PSHA）。评估了表面危害对现场响应分析方法的敏感性，采用随机振动理论（RVT）和时间序列（TS）方法。不同假设与强运动持续时间有关的影响，表面均匀危害频谱（UHS）中的目标频率的选择以及通过蒙特卡罗模拟掺入现场性质的可变性。结果表明，对于检查的刚性位点，在高频上集中响应，RVT站点响应分析的使用不会在低频地面运动预测中引入系统偏差，并且输入地面运动的定义中使用的持续时间是如此证明对网站响应具有二次影响。掺入现场性质的可变性和卷积中的目标频率的选择在均匀危险频谱的推导方面是重要的。

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