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中文摘要：
文章提出了结构能量反应的振型分解反应谱法,通过算例分析,此方法计算的结构能量反应结果能较好地满足弹性体系,但对弹塑性体系有其应用的局限性;结构塑性发展愈全面愈深入,则计算结果与实际反应出入愈大,受结构及地震动特性的影响,此值会高度低估或高估实际能量反应。
英文摘要：
The modal decomposition spectrum method for structure＇s energy response is advanced in this paper.Numerical examples show that the proposed method satisfies the elastic system well,but limitations exist in its application in elastic-plastic systems.Large discrepancy may happen for structure with plasticity deep and wide developed and it would be larger when plasticity goes deeper and wider,and the structure＇s maximum energy response would be highly overestimated or underestimated as the characteristics of the structure and earthquake input vary.
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