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1.概述(全文及图1,2和3均略)2.地震动的性质、地震危险度和设计用地震荷载的研究地震动性质和地震危险度的研究近年来特别盛行,正在从不同角度阐明地震动在工程方面的意义,但是从抗震设计的实用观点来看,给人的印象是方向稍有分散。地震动和地震危险度研究盛行的背景是:①以加速度强震仪的记录为主地震记录不断积累,使地震动特性的一般研究成为可能;②概率的、统计的观点广泛运用,促进了地震动和地震发生资料的充实;③作为抗震分析对象的构筑物多样化,产生了从更多方面阐明地震动性质的必要性;④断层模型模拟地震发生机制
1. OVERVIEW (Full text and figures 1, 2 and 3 are omitted) 2. Study on the nature of earthquakes, earthquake risk and design seismic load Research on the nature of earthquakes and the risk of earthquakes is particularly prevalent in recent years and is being conducted from different perspectives Clarifying the engineering significance of earthquakes, but from the pragmatic point of view of seismic design, the impression is that the direction is slightly dispersed. The background of ground motion and earthquake risk research is as follows: (1) The earthquakes are mainly recorded by acceleration seismographs, and the general research on the characteristics of earthquakes is possible. (2) Probabilistic and statistical observations are widely used to promote earthquakes Dynamic and seismic data enrichment; ③ as a seismic analysis of the diversification of structures, resulting in more than a necessity to clarify the nature of the earthquake; ④ fault model to simulate the occurrence of the earthquake mechanism