近场强地震动模拟现状分析  

Simulation Status Analysis of Near-field Strong Ground Motion

作　　者：钟菊芳[1] 

机构地区：[1]南昌航空大学土木建筑学院,南昌330063

出　　处：《南昌航空大学学报（自然科学版）》2014年第2期1-8,共8页Journal of Nanchang Hangkong University(Natural Sciences)

基　　金：国家自然科学基金(51069010);江西省自然科学基金(20114BAB206011);水利部公益性行业科研专项项目(201401009);江西省2013年度研究生创新专项资金(YC2013-S216)

摘　　要：在分析开展近场强地震动模拟的必要性的基础上,综述了目前近场强地震动模拟过程中常用的模拟方法、随机有限断层法的震源模型、地震辐射能量以及断层分段性的研究进展,指出了现有震源破裂模型在考虑断层破裂分段性和各子断层间相互作用方面,以及地震动模拟方法在地震矩和能量守恒方面的处理方式上存在的不足,进一步明确了近场强地震动模拟的现状以及还有待深入探讨的几个关键问题,供后续研究者借鉴与参考,以获得更为逼真的用于结构抗震计算分析的人造地震动时程。Based on the analysis of the necessity to carry out near-field strong ground motion simulation, brief overviews of the development of the stochastic finite faults source model, seismic radiation energy and segmentation fault have been made. The shortcomings of the present source rupture model in considering the fault rupture characteristic, the interaction among sub-faults and the energy conservation have been pointed out. The actuality of near-field strong ground motion simulation and several key questions that need to be explored in depth has been further clarified. The present work can be served as a reference to get a more realistic artificial ground motion for structural aseismic calculation analysis.

关 键 词：近场强地震动 时程模拟 震源模型 断层 辐射能 

分 类 号：P315[天文地球—地震学]