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本文根据美国西部的强震观测数据,用回归分析方法建立了以土质定量特征为基础的地震动峰值衰减规律。为将其结果合理地应用于我国地震区,分别统计了美国西部及我国东部与西部的烈度衰减规律,并依据两地区烈度衰减推算地震动参数衰减差异的方法,建立了我国东部与西部地区的地震动峰值衰减模型。本文提供的地震动峰值衰减规律,可直接应用于地震影响小区划及实际工程设计。
Based on the observation data of strong earthquakes in the western United States, this paper establishes the attenuation law of ground motion peak based on the quantitative characteristics of soil mass using regression analysis. In order to reasonably apply the results to seismic regions in China, the attenuation laws of intensity in the western United States and eastern and western parts of China were respectively calculated. Based on the attenuation attenuation of ground motion parameters derived from the intensity attenuation in the two regions, the eastern and western regions of China were established. Ground motion peak attenuation model. The ground motion peak attenuation law provided in this paper can be directly applied to the earthquake affected community planning and actual engineering design.