CONTRAST ANALYSIS OF EFFECT OF SITE CONDITION ON THE MAXIMUM OF DESIGN RESPONSE SPECTRA
CONTRAST ANALYSIS OF EFFECT OF SITE CONDITION ON THE MAXIMUM OF DESIGN RESPONSE SPECTRA
复制标题
场地条件对设计响应谱最大值影响的对比分析
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
Zhao Yan
中科院分区：
文献类型：
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作者：
Zhao Yan
本文介绍和分析了我国场地条件对设计反应谱最大值影响的研究现状，比较了不同研究者所采用的方法和得出的结论，指出了它们之间存在的差异，并对这些方法进行了比较，指出了它们在场地划分标准、所用地震记录来源、场地条件、场地条件等方面的差异。（3）确定地震动强度的依据; 4）计算场地系数时所参照的场地类别标准，同时发现我国《建筑抗震设计规范》中Ⅳ类场地的范围过小，上述分析和比较表明，用峰值加速度来划分地震动烈度更为合理以有效峰值加速度（EPA）为计算标准，根据实际地震记录、我国现行场地分类标准和各测站地质剖面图，对可供选择的场地进行了分类，并提出了一组经验系数，用于确定不同类别场地的设计反应谱最大值，计算了不同类别场地的环境影响系数，并对结果进行了分析。
The present situation of research on the effect of site condition on the maximum of design response spectra in China is introduced and analyzed in this paper.The methods used by various researchers and conclusions gained by them are contrasted,then differences existing in them are pointed out.Comparison of these methods shows the differences in four aspects,i.e.1)criteria for site categorization;2)origin of earthquake records used;3)basis for determining the ground motion intensity;and 4)site categorization standard referenced in calculating site coefficient.Meanwhile,we find that the range of the site category Ⅳ in Code for Seismic Design of Building in Chins is too small,so it is necessary to be adjusted.The above analysis and comparison indicate that it will be more reasonable to categorize the ground motion intensity with the peak ground acceleration of site category II and take the effective peak acceleration(EPA)as the calculation standard.In the end of this paper,categorization is done for the available sites based on the actual earthquake records,the current site categorization criteria in China and the geological section map of each station,and a set of empirical coefficients are suggested for the determination of maximum of design response spectra for sites of different categories upon calculating the EPA of different category sites and analyzing the results.