基于能力谱法的耗能减震加固设计
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摘要
采用能力谱法对既有结构进行抗震能力评估,建立基底剪力-顶点位移关系曲线,并转化为能力谱曲线;根据能力谱曲线以及地震需求谱曲线,来确定结构达到预定性能目标下所需阻尼比。根据所需附加阻尼比设计阻尼器,对结构进行加固,达到抗震加固目的。
Seismic performance of the exiting structure evaluated with capacity spectrum method , further more, the relationship curve of shear and displacement is formed, then transform the curve into capacity spectrum curve. Damping ratio determined by seismic demand spectrum . Adjust the damping ratio by installing damper to satisfy with structure seismic performance , get the purpose of seismic retrofit.
引文
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