| 基于反演基岩地震波的场地调整系数估计 |
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| 引用本文： | 丁海平,王康.基于反演基岩地震波的场地调整系数估计[J].地震工程与工程振动,2022,42(1):25-33. |
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| 作者姓名： | 丁海平 王康 |
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| 作者单位： | 江苏省结构工程重点实验室(苏州科技大学),江苏苏州215011;中国地震局工程力学研究所,黑龙江哈尔滨150080;江苏省结构工程重点实验室(苏州科技大学),江苏苏州215011 |
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| 基金项目： | 国家自然科学基金项目（51808371）~~； |
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| 摘 要： | 基于KiK-net台阵中73个台站的一维土层模型和从不同地震中筛选的262条地表加速度记录,按照峰值加速度的分档标准和场地分类原则,将这些记录分成了28组.采用一维土层地震反应分析的等效线性化方法,反演计算了基岩输入加速度.通过分别计算各组基于有效峰值加速度EPA的场地放大倍数,并得到了各类场地的有效峰值加速度的调整系...
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| 关 键 词： | KiK-net强震记录 场地放大倍数 场地影响系数 有效峰值加速度 基岩地震波反演 |
Estimation of site coefficient based on inversion of bedrock input |
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| DING Haiping,WANG Kang.Estimation of site coefficient based on inversion of bedrock input[J].Earthquake Engineering and Engineering Vibration,2022,42(1):25-33. |
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| Authors: | DING Haiping WANG Kang |
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| Institution: | (Key Laboratory of Structure Engineering of Jiangsu Province,Suzhou University of Science and Technology,Suzhou 215011,China;Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China) |
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| Abstract: | Based on the one-dimensional soil model of 73 stations and the selected 262 surface acceleration records‐from KiK-net,the data are divided into 28 groups according to the classification standard of peak acceleration and the principle of site classification.The input acceleration of bedrock was inverted by using the equivalent linearization method of one-dimensional soil seismic response analysis.By separately calculating site amplification factor of each group based on the effective peak acceleration EPA,the site coefficients are obtained.The results show that site amplification factor and site coefficients of classⅡsite are the largest,followed by classⅢand classⅠsite,and classⅣsit have the smallest. |
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| Keywords: | KiK-net strong-motion seismograph network site amplification factor site coefficient effective peak acceleration inversion of bedrock seismic waves |
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