竖向地震动特性的统计分析

发布时间：2018-05-04 15:55

  本文选题：地震动 + 峰值　； 参考：《地震工程与工程振动》2014年S1期

【摘要】：依据171次地震中3 462组三分量地震记录,对竖向地震动的一些特性进行了统计分析,结果表明:(1)在近场区,竖向地震动的影响较大,峰值较大而且往往首先出现;(2)地面震动强度越大,竖向地震动的相对比值V/H1越大;(3)V/H1峰值比的总体平均值约为0.5,V/H1≤0.65的总体累积概率约为84.5%;(4)竖向反应谱曲线下降段的衰减指数小于水平向;竖向反应谱拐点周期要小于水平反应谱,而且与场地条件关系不大。
[Abstract]:Based on the 3 462 group three component seismic records of 171 earthquakes, some characteristics of vertical ground motion are statistically analyzed. The results show that in the near field region, the vertical ground motion has a great influence on the vertical ground motion. The larger the peak value is and the more the ground vibration intensity is, The larger the relative ratio of vertical ground motion (V/H1) is, the larger the ratio of V / H _ 1 to V / H _ 1 is, the overall cumulative probability is about 0.5V / H _ 1 鈮，

本文编号：1843627