福建地区中小地震加速度反应谱衰减规律  

Acceleration spectrum attenuation relation for small and moderate earthquakes in Fujian region

作　　者：金星[1,2] 康兰池[1] 欧益萍 

机构地区：[1]福州大学,福建福州350002 [2]福建省地震局,福建福州350003 [3]福建省建筑轻纺设计院,福建福州350003

出　　处：《地震工程与工程振动》2009年第5期52-58,共7页Earthquake Engineering and Engineering Dynamics

基　　金：地震行业科研专项基金(200808067)

摘　　要：本文基于收集福建省地震监测台网7个基岩台站从1999年至2007年获得的94个地震（ML=2.8-4.9,△=13-462 km）的1974条宽频带速度记录,利用实时仿真方法得到了相应的加速度记录,进而得到了福建地区基岩场地中小地震绝对加速度反应谱的衰减关系。对基岩反应谱有影响的因素主要有震源、传播途径,本文简要分析这两个因素对地震动的影响。此项工作对于福建省抗震设防具有重要的意义。In this paper we collect 1974 broadband velocity records of 94 earthquakes （ML = 2.8 -4.9 ,△=13-462 km） obtained from 7 stations of the Seismic Monitoring Network of Fujian Province from March 1999 to March 2007. The method of real-time simulation is used to simulate the corresponding acceleration. We obtain the absolute acceleration response spectrum, then a new attenuation relationship, which is between the small and moderate earthquakes on bedrock site in Fujian region, is given. The main factors affecting the response spectrum are source and transmission. This paper has a brief analysis of these two factors . This work is of great significance for the seismic fortification of Fujian region.

关 键 词：实时仿真 绝对加速度反应谱 衰减关系 

分 类 号：P315.916[天文地球—地震学]