摘要
本文建议用场地的平均剪切模量和覆盖土层厚度作为场地评定指标,以模糊推论的综合评判导出的场地相对隶属度作为场地指数,通过场地指数确定标准反应谱,并将它表示为与场地相关的连续变化形式。文中研究了水平向和竖向反应谱形状的关系和远近震的影响。本文建议的反应谱,是以国内外直至近年取得的大量强震记录的统计分析为基础,比较符合新近的地震动特征研究结果和大量的震害经验,可供制订工业构筑物、电力设施和铁路、公路等专业工程方面的抗震设计规范时作为参考。
In this paper, two parameters, average shear modulus and overlaying soil layer depth, are proposed as the indexes in site assesment for aseismic design.The site index is defined by the value of membership function of sites by applying the fuzzy set theory. Furthermore, the authors present a new method in which response spectra for aseismic design are expressed in a continuous function of site index. Comparison between horizontal and vertical response spectra is made and effect of source distance on shape of response spectra is considered. The response spectra for aseismic design proposed in this paper may be used to workout aseismic design codes for industrial construction, electric facilities and so on,
出处
《地震工程与工程振动》
CSCD
北大核心
1991年第4期39-50,共12页
Earthquake Engineering and Engineering Dynamics
