zybamrm 发表于 2017-6-21 15:54 要乘,题目中说的是按二层和一层刚度比后按照抗震规范7.2.4的放大系数,并非按照抗震等级7.5.6第五款的放 ...
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手机版|小黑屋|第一证书
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