CONSIDERATION ON MECHANISM OF RESIDUAL SEISMIC PERFORMANCE OF SINGLE-COLUMN RC PIERS BASED ON CYCLIC LOADING EXPERIMENTS

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  • 正負交番載荷実験に基づく単柱式RC橋脚の残存耐震性能メカニズムに関する考察

Abstract

<p> In the 2016 Kumamoto earthquake, we experienced two large ground motions to infrastructure. Even if the structure has sufficient strength against a preceding seismic load, the residual seismic performance against a subsequent seismic load is unknown. In order to cope with multiple seismic loads, it is necessary to clarify the relationship between the load history due to preceding seismic loads and the residual seismic performance. In order to examine the residual seismic performance of single-column RC piers, the authors conducted cyclic loading tests corresponding to preceding seismic loads and reloading tests corresponding to subsequent seismic loads. The parameters were set to the first loading range with reference to the limit state of the specification for highway bridges.</p>

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