Guerrero台网地震记录长周期反应谱特性研究  

The Characteristic Research of Long-Period Response Spectrum Recorded in Guerrero Seismic Network

作　　者：臧明明[1] 

机构地区：[1]同济大学土木工程学院,上海200092

出　　处：《清远职业技术学院学报》2009年第6期63-68,共6页Journal of Qingyuan Polytechnic

摘　　要：利用布设在墨西哥太平洋沿岸的Guerrero台网的强震记录,按照震级和震中距进行了分组,计算了周期至10s的平均绝对加速度反应谱,分析了震级、震中距对地震动反应谱长周期段的影响,并利用平均反应谱对某大跨桥梁模型进行了反应谱分析。结果表明:震级大的地震记录含有更加丰富的长周期地震动成分,结构的地震响应越大,震中距对地震动反应谱长周期段形状有一定的影响。It is to use microseism records from Guerrero seismic network located in Pacific coast of Mexico, and group them in terms of magnitude and epicentral distance, then to calculate their average absolute acceleration response spectrum with a cycle to 10s, analyze the effect of magnitude and epicentral distance to the long period portion of response spectrum, and use average response spectrum to analyze one long-span bridge structure. The results showed that more long-period portion are included in seismic records with larger magnitudes, and more intense seismic response for structure. And the epicentral distance has particular effect on the appearance of long-period part.

关 键 词：长周期反应谱 数字强震仪 加速度记录 

分 类 号：P315.63[天文地球—地震学]