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我国现行抗震设计规范中给出的反应谱依赖于两个参数,即地震烈度和场地土类别。由于目前对地震本身的认识还是相当模糊,它所产生的影响也就不可避免地具有相当的模糊性。本文以模糊数学为理论基础,从地震烈度和场地土类别都具有模糊性的观点出发,分析探讨在地震动作用下结构的反应,从而解决现行抗震结构设计中地震荷载突变的矛盾,其分析结果将更符合震害的实际情况。
The response spectrum given in China’s current seismic design code depends on two parameters, namely seismic intensity and site soil category. Since the current understanding of the earthquake itself is still rather vague, the impact it produces is inevitably quite ambiguous. Based on the theory of fuzzy mathematics, this paper analyzes and discusses the response of structures under ground motion from the point of view of the seismic intensity and site soil types are ambiguous, so as to solve the contradiction of seismic load abrupt changes in the current seismic design. Will be more in line with the actual situation of earthquake damage.