集集地震等震线和PGA、PGV等值线关系的研究  

Study on the relationship between isoseismal and isolines of PGA and PGV for Chi-Chi Earthquake

作　　者：郝敏[1] 谢礼立[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090

出　　处：《地震工程与工程振动》2006年第1期18-21,共4页Earthquake Engineering and Engineering Dynamics

基　　金：教育部高等学校博士学科点专项科研基金(20030213042);黑龙江省自然科学基金重点项目(ZJG03-03)

摘　　要：本文通过比较集集地震的等震线、加速度和速度等值线的相似度,发现加速度等值线和烈度等震线有更好的相似性,后通过数学分析也得到了相同的结果。由于集集地震中受损的大部分是短周期脆性结构,本文的研究结果可以说明:和峰值速度相比,地震动峰值加速度能够更好地体现地震动对脆性结构的破坏势。峰值速度也和震害有一定的相关性,但对于脆性结构它所体现的破坏能力不如峰值加速度。The comparison of the isoseismal with the isoline of PGA and PGV of Chi - Chi Earthquake is conducted in this paper. The result implies that the isoline of PGA is more similar to the isoseismal than the isoline of PGV. The mathematical analysis gives the same result, which indicates that compared to PGV, PGA can reflect the damage potential of brittle structures better because most of the structures destroyed in this earthquake are brittle structures with low periods. Though PGV has some relationship with the damage to structures the damage capability it refleets is less than the one reflected by PGA.

关 键 词：烈度等震线 加速度等值线 速度等值线 地震动破坏势 

分 类 号：P315.9[天文地球—地震学]