首页|期刊导航|中国地震研究：英文版|Amplification Effect of Peak Ground Motion Acceleration in Class Ⅱ and Ⅲ Sites over Shandong Province
中国地震研究：英文版2011，Vol.25Issue(4)：498-506,9.
Amplification Effect of Peak Ground Motion Acceleration in Class Ⅱ and Ⅲ Sites over Shandong Province
Amplification Effect of Peak Ground Motion Acceleration in Class Ⅱ and Ⅲ Sites over Shandong Province
摘要
Abstract
In this paper, the amplification factor （ks ） of peek ground motion with different exceedance probability in class Ⅱ and Ⅲ sites over Shandong Province was estimated by analyzing the seismic response data of soil layers collected from 358 boreholes of class Ⅱ sites and 140 boreholes of class Ⅲ site. From the results, one can conclude that： （1） The scatter plot of ks generally obeys a normal distribution ; （2） ks decreases with the increase of the strength of input ground motion, which is more apparent in Class Ⅲ site than in class lI site; （3） for class Ⅱ site, with the increase of depth of the bedrock interface where ground motion inputs, ks increases gradually until to a stable value when the depth reaches up to approximately 20 meters or larger. Yet, for class Ⅲ site, ks is insensitive to the depth; （4） the average of ks for class Ⅱ site is 1.47, slightly larger than that used in the Seismic Ground Motion Parameters Zonation Map of China （ GB 18306-2001 ）. Also, ks in class Ⅱ and Ⅲ sites at different levels of peak ground acceleration over Shandong Province is preliminarily discussed in the paper.关键词
峰值加速度/地面运动/山东省/网站/放大效应/土层地震反应/地震动参数/放大倍数Key words
Seismic ground motion/Peak ground acceleration/Site condition/Exceedanceprobability/amplification factor分类
天文与地球科学引用本文复制引用
Diao Ting,Chen Shijun,Jiang Zaofeng..Amplification Effect of Peak Ground Motion Acceleration in Class Ⅱ and Ⅲ Sites over Shandong Province[J].中国地震研究：英文版,2011,25(4):498-506,9.基金项目
This research was supported by Shandong Institute of Earthquake Engineering ( Natural Science Foundation of Shandong Province ( Y2002E01 ) ) （ Natural Science Foundation of Shandong Province ( Y2002E01 ）
Shandong Science and Technology Development Project (2010GSF10806) , China. （2010GSF10806）
