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基于现行规范场地划分标准的位移反应谱衰减关系

DOI: 10.13197/j.eeev.2014.05.56.wangmf.008, PP. 56-65

Keywords: 强震记录,场地分类,位移反应谱,衰减关系

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Abstract:

将选择的591条美国、日本及我国台湾地区的强震记录按照我国现行建筑抗震设计规范中的规定进行场地分类。利用这些强震记录,统计得到了对应Ⅰ、Ⅱ、Ⅲ、Ⅳ四类场地,阻尼比ξ=0.02、0.05、0.10、0.15、0.20、0.30,自振周期从0.05s到10.0s,周期间隔为0.05s的各周期点的弹性位移反应谱的衰减关系,探讨了震级、断层距、场地类别、阻尼比等对弹性位移反应谱影响。文中结果为我国开展基于性能的结构抗震设计提供了可供选择的位移反应谱的预测公式。

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