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一、概述强震观测工作自问世五十余年以来,一直为国际地震工程界所重视,特别是近廿年内,在促进近场地震学的形成与发展过程中显露了巨大作用。强震观测所获取的记录数据在系统地研究地震波的产生和传播规律,确定震源参数和余震迁移持性,计算近源地层的速度结构,进行地震危险性区划和场地地震危险性评定,验证和改进结构现有抗震分析及设计方法,鉴定现有结构的抗震性能和评价相应的加固方案,以及确定新结构的
I. General Overview Earthquake observations have been valued by the international seismic engineering community since their publication more than 50 years ago. Especially in the past 20 years, the observation of strong earthquakes has played an important role in promoting the formation and development of near-field seismology. The recorded data acquired by strong earthquakes systematically study the generation and propagation of seismic waves, determine the source parameters and aftershock migration supportability, calculate the velocity structure of near-source stratum, carry out seismic hazard zoning and site seismic risk assessment, verification and Improve existing seismic analysis and design methods for structures, identify seismic performance of existing structures and evaluate appropriate reinforcement schemes, and identify new structures