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简述确定水平地震作用的振型分解反应谱法的主要步骤。
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简述确定水平地震作用的振型分解反应谱法的主要步骤。
时间：2022-02-27 09:48
关键词：
建筑结构抗震设计
土木建筑工程
大学试题
工学
安全知识安全生产知识竞赛
防震减灾知识竞赛
答案解析
<p> （1）计算多自由度结构的自振周期及相应振型；<br> （2）求出对应于每一振型的最大地震作用（同一振型中各质点地震作用将同时达到最大值）；<br> （3）求出每一振型相应的地震作用效应；<br> （4）将这些效应进行组合，以求得结构的地震作用效应。</p>
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