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（南京工業(yè)大學(xué) 土木工程學(xué)院， 南京 211816）

[摘要]  以日本防災(zāi)科學(xué)技術(shù)研究所(NIED)K-NET，KiK-net強(qiáng)震數(shù)據(jù)庫(kù)的寬頻數(shù)字記錄為基礎(chǔ)，基于記錄的地震數(shù)據(jù)分為鉆孔基巖和地表土層，分別進(jìn)行了V/H加速度峰值比以及反應(yīng)譜比的統(tǒng)計(jì)分析。通過(guò)研究得出以下結(jié)論：豎向地震動(dòng)分量和水平分量的峰值比和反應(yīng)譜比不僅與場(chǎng)地條件有關(guān)，還與震中距、震級(jí)等因素有關(guān)；基巖和土層V/H加速度峰值比及反應(yīng)譜比區(qū)別很大，由于豎向地震分量與水平分量的頻率特性不同，地表土層效應(yīng)對(duì)水平地震分量與豎向分量產(chǎn)生了不同的影響。

[關(guān)鍵詞]  鉆孔基巖;V/H加速度峰值比;V/H加速度反應(yīng)譜比;豎向反應(yīng)譜

中圖分類號(hào)：TU475      文獻(xiàn)標(biāo)識(shí)碼：A         文章編號(hào):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