（南京工业大学 土木工程学院， 南京 211816）

[摘要]  以日本防灾科学技术研究所(NIED)K-NET，KiK-net强震数据库的宽频数字记录为基础，基于记录的地震数据分为钻孔基岩和地表土层，分别进行了V/H加速度峰值比以及反应谱比的统计分析。通过研究得出以下结论：竖向地震动分量和水平分量的峰值比和反应谱比不仅与场地条件有关，还与震中距、震级等因素有关；基岩和土层V/H加速度峰值比及反应谱比区别很大，由于竖向地震分量与水平分量的频率特性不同，地表土层效应对水平地震分量与竖向分量产生了不同的影响。

[关键词]  钻孔基岩;V/H加速度峰值比;V/H加速度反应谱比;竖向反应谱

中图分类号：TU475      文献标识码：A         文章编号:1002-848X(2013)S1-1258-05

Based on site conditions of vertical ground motion characteristics research

Wang Fei, Wang Shuguang, Liu Weiqing, Du Dongsheng

(Department of Civil Engineering, Nanjing University of technology, Nanjing 211816, China)

Abstract: This paper mainly through the Japanese disaster prevention science and technology research institute (NIED) K-NET, KiK-NET strong database of broadband digital recording as the foundation, based on the record of the seismic data is divided into borehole rock and surface soil, separately carried on the V/H ratio and peak acceleration response spectrum than statistical analysis. Through the study draw the following conclusion: The vertical ground motion component and the horizontal component of the peak ratio and response spectrum than not only with the site conditions, but also to the epicenter, the other factors, such as magnitude; Rock and soil V/H ratio and peak acceleration response spectrum ratio difference is very big, due to the vertical seismic component and the horizontal component of the different frequency characteristic, overburden effect on horizontal seismic component and vertical component produced different effects.

Keywords: borehole rock; V/H peak acceleration ratio; V/H acceleration response spectrum ratio; vertical response spectrum