›› 2011, Vol. 25 ›› Issue (6): 37-.

• 工程实录 • 上一篇    下一篇

常德某电厂场地地震动反应分析

余子华, 廖爱平, 余 丰, 孟惜春   

  1. (湖南省电力勘测设计院,长沙 410007)
  • 收稿日期:2011-09-26 出版日期:2011-12-20 发布日期:2012-01-15
  • 作者简介:余子华,男,工程师,主要从事岩土工程勘测与设计工作。

Seismic Response Analyses at a Power Plant Site

YU  Zi  hua, LIAO  Ai  ping, YU  Feng, MENG  Xi  chun    

  1. (Hunan Electric Power Design Institute, Changsha 410007, China)
  • Received:2011-09-26 Online:2011-12-20 Published:2012-01-15

摘要: 为了模拟50年超越概率为10%、2%、1%、震中距40 km的地震,首先产生了基岩地面响应合成时程图,然后以合成的50年超越概率为10%、2%、1%的基岩地震波作为输入,使用一维剪切波理论对穿过场地土层的输入响应进行地震反应计算并分析地表动反应,最终目的是对常德地区某电厂场地进行地震反映分析。计算所得到的加速度时程图、加速度反应谱以及放大谱对工程设计人员有较大的帮助。

关键词: 发电厂场地, 地震反应分析, 地表加速度峰值, 时程, 放大谱

Abstract: In this study, the time histories of the synthetic bedrock ground motions have been generated to simulate various earthquake moment magnitudes at probabilities of 10%, 2%, and 1% in fifty years level with an epicentral distances of 40 km. Applying these bedrock time histories into the soil profiles of a power plant site in northern Hunam Province. By using surface seismic shear wave method, which is a one\|dimensional, equivalent\|linear analysis, the ground response under the seismic ground motion was obtained. The computed acceleration time histories, response spectrum and amplification spectrum are most useful parameters for seismic design.