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Preliminary analysis of the hanging wall effect and velocity pulse of the 5.12 Wenchuan earthquake

ISSN号：1671-3664
期刊名称：《地震工程与工程振动：英文版》
时间：0
分类：P631.443[天文地球—地质矿产勘探;天文地球—地质学] TU435[建筑科学—岩土工程;建筑科学—土工工程]
作者机构：[1]Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China
相关基金：National Natural Science Foundation of China Under Grant No. 90715038; National Basic Research Program of China Under Grant No. 2007CB71420）; the Basic Science ＆ Research Foundation of Institute of Engineering Mechanics, CEA Under Grant No. 2006A02 Acknowledgement The authors are grateful to the National Strong Motion Networks and all the managers and experts who provided the records used in this study. The research work was also supported by the National Natural Science Foundation of China （90715038）, the National Basic Research Program of China （2007CB71420） and Basic Science ＆ Research Foundation of Institute of Engineering Mechanics, CEA （2006A02）. This support is gratefully acknowledged.

关键词：地震记录, 峰值速度, 挂壁, 汶川, 脉搏, 衰减关系, 脉冲特征, PGA, Wenchuan earthquake, hanging wall effect, velocity pulse, attenuation

中文摘要：

从 M _s=8.0 在这篇论文被描述。学习在时间和主要地震记录的频率领域通过分析被执行。在 PGA 变细学习，从 316 记录车站当一个数据库和变细关系被开发，与一些存在关系相比，那广泛地在大陆中国，中国台湾和 US 被使用，从差错的表面破裂的不到 1000 km 被使用。同时，从 28 记录车站从差错的不到 100 km 被用来基于针网阵列的分发学习挂的墙效果和这地震的速度脉搏特征， PGV ，光谱加速，和速度脉搏达到顶点，并且结果与 1999 假装聪明的地震相比。另外，在这个事件观察的 UD 部件的大针网阵列也在这篇论文被讨论。从初步的学习的结果，一些结论被开发，为进一步的研究的建议被建议。

英文摘要：

A preliminary study of the PGA attenuation, hanging wall effect and velocity pulse characteristics from the 2008 Wenchuan earthquake ofMS -8.0 is described in this paper. The study was carried out through analyses in the time and frequency domains of main earthquake records. In the PGA attenuation study, records from 316 stations less than 1000 km from the surface rupture of the fault were used as a database and attenuation relationships were developed and compared with some existing relationships that are widely used in mainland China, Chinese Taiwan and the US. At the same time, records from 28 stations less than 100 km from the fault were used to study the hanging wall effect and velocity pulse characteristics of this earthquake based on the distribution of PGA, PGV, spectral acceleration, and the velocity pulse peak, and the results are compared with the 1999 Chi-Chi earthquake. In addition, the large PGAs of the UD components observed in this event are also discussed in this paper. From the results of the preliminary study, some conclusions are developed and suggestions for further research are proposed.

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