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关于强地震对结构的作用,应当考虑随时间变化的地面运动的全过程。 这个过程的统计特征是由震级、中间介质及地表土层的特性决定的。 因为现在已经有了从基岩运动推算地表运动的可靠方法,所以搞清基岩运动的特征并由此对基岩运动的过程作出估计,显得特别重要。 本文对美国27个基岩台上的强震记录的反应普以及几个最大值与震级和震源距离的关系进行了统计分析,找到它们的关系。从这些关系出发,对指定的震级和震源距离的基岩,可以估计它的运动特征,并人工造成一组运动过程。
With regard to the effect of strong earthquakes on the structure, the whole process of ground motion that changes over time should be considered. The statistical characteristics of this process are determined by the characteristics of the magnitude, intermediate medium and surface soil. Since there is now a reliable method of calculating surface motion from bedrock, it is particularly important to understand the characteristics of bedrock motion and thereby to estimate the bedrock motion. In this paper, the correlation between the strong earthquakes recorded on 27 bedrock stations in the United States and the relationships between several maxima and the magnitude and focal distance are statistically analyzed and their relationships are found. From these relationships, the bedrock for a given magnitude and source distance can be estimated for its motion characteristics and artificially created for a set of kinematic processes.