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动力人工边界是采用3D有限元技术解决地基动力问题的必要手段。采用粘弹性边界模型和透射边界模型,选取中国北方某典型核电工程实例进行地震响应分析,并将2种复杂人工地基边界模型的结果同简化均匀地基模型的分析结果进行对比,以比较不同分析模型在模拟复杂地基动力效应方面的差异。
Dynamic artificial boundary is the necessary means to solve the dynamic problem of foundation with 3D finite element technology. Using the viscoelastic boundary model and the transmissive boundary model, an example of a typical nuclear power project in northern China is selected for seismic response analysis. The results of two kinds of complex artificial foundation boundary models are compared with the simplified uniform foundation model to compare different analysis models Differences in simulating dynamic effects of complex foundations.