| 震后城市地震动场快速评估方法——以福州盆地为例 |
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| 引用本文： | 丁海平,卜超鹏,杨朝辉.震后城市地震动场快速评估方法——以福州盆地为例[J].地震工程与工程振动,2012,32(1):11-15. |
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| 作者姓名： | 丁海平 卜超鹏 杨朝辉 |
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| 作者单位： | 1. 江苏省结构工程重点实验室(苏州科技学院),江苏苏州215011;中国地震局工程力学研究所,黑龙江哈尔滨150080
2. 江苏省结构工程重点实验室(苏州科技学院),江苏苏州,215011 |
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| 基金项目： | 国家自然科学基金项目(50978176);国家重点基础研究发展计划(973)项目(2007CB714200) |
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| 摘 要： | 震后灾情的快速获取是灾后应急的基础,传统的方法是根据现场调查结果决定应急方案。受灾程度的分布常以烈度分布图描述,而烈度又与加速度峰值密切相关。本文提出了一种震后地震动场分布快速评估的方法。该方法将主要依据灾区基岩台站的实时强震记录(无强震记录也行)和该地区的加速度衰减关系,再结合该地区各类场地的地震动放大因子,则可快速估计该地区地震动场分布,从而确定灾情,为政府的应急决策提供依据。
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| 关 键 词： | 地震动场 快速评估 场地效应 |
A method for rapid ground motion assessment: Taking Fuzhou basin as an example |
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| DING Haiping
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BU Chaopeng
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YANG Zhaohui.A method for rapid ground motion assessment: Taking Fuzhou basin as an example[J].Earthquake Engineering and Engineering Vibration,2012,32(1):11-15. |
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| Authors: | DING Haiping BU Chaopeng YANG Zhaohui |
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| Institution: | 1(1.Key Laboratory of Structure Engineering of Jiangsu Province,Suzhou 215011,China; 2.Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China) |
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| Abstract: | To assess the earthquake disaster quickly is the foundation of post-disaster emergency.The traditional method for deciding emergency plan is according to the survey results.The distribution of affected degree is often described with intensity distribution map,and the intensity is closely related with the peak acceleration.This paper puts forward a method for rapid assessment of ground motion field distribution.This method will be mainly based on the real-time records and the attenuation relationship of acceleration of bedrock station in earthquake disaster area(including no real-time records on the strong earthquakes).At the same time,it is also based on the earthquake amplification factor of the area of various kinds of field.Finally,we can rapidly estimate the earthquake distribution and the disaster of this area which can be a basis for the government’s emergency decision. |
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| Keywords: | ground motion field rapid assessment field effect |
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