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日本东北大地震时强震观测点周边地区地震动估算方法的论证 被引量:2
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作者 吴浩 《地震工程与工程振动》 CSCD 北大核心 2014年第S1期183-187,共5页
针对大地震发生时受灾严重而又缺少地震记录的地区,本文利用地表观测到的常时微动数据进行地震动的估算,并对此方法进行了论证。这个方法涉及两个关键步骤,即利用常时微动的H/V谱来推测观测点的地下速度结构模型,和通过震源模型合成基... 针对大地震发生时受灾严重而又缺少地震记录的地区,本文利用地表观测到的常时微动数据进行地震动的估算,并对此方法进行了论证。这个方法涉及两个关键步骤,即利用常时微动的H/V谱来推测观测点的地下速度结构模型,和通过震源模型合成基岩处的输入地震波。此方法基于震源模型并有效地考虑场地效应的影响,有望在缺少地震记录的受灾地区进行地震动的估算方面得到应用。 展开更多
关键词 地震动估算 常时微动H/V谱 地下速度结构模型 震源模型 场地效应
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Application of fuzzy theory on earthquake damage rate estimation of buildings
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作者 邵扬威 吴玉祥 +2 位作者 高士峰 黄麒然 张宽勇 《Journal of Central South University》 SCIE EI CAS 2014年第6期2454-2459,共6页
Variations between earthquakes result in many factors that influence post-earthquake building damage(e.g.,ground motion parameters,building structure,site information,and quality of construction).Consequently,it is ne... Variations between earthquakes result in many factors that influence post-earthquake building damage(e.g.,ground motion parameters,building structure,site information,and quality of construction).Consequently,it is necessary to develop an appropriate building damage-rate estimation model.The building damage survey data were recorded and constructed into files by the Architecture and Building Research Institute(ABRI),Taiwan for the 1999 Chi-Chi earthquake in the Nantou region as a basis for developing a building damage rate estimation model by applying fuzzy theory to express the fragility curves of buildings as a membership function.Empirical verification was performed using post-earthquake building damage data in the Taichung city that suffered relatively severe damage.Results indicate that fuzzy theory can be applied to predict building damage rates and that the estimated results are similar to actual disaster figures.Prediction of disaster damage using building damage rates can provide a reference for immediate disaster response during earthquakes and for regular disaster prevention and rescue planning. 展开更多
关键词 fuzzy theory membership function fragility curve earthquake damage rate
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