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Title |
A Study on Improvement of Seismic Performance of High Strength Reinforced Concrete Interior Beam-Column Joints Using High Ductile Fiber-Reinforced Mortar and Advanced Reinforcing Detailings
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DOI |
https://doi.org/10.4334/JKCI.2013.25.2.233 |
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Keywords |
고인성섬유 복합 모르타르 ; 고성능 배근상세 ; 내진성능 ; 내부 보-기둥 접합부 ; 반복하중 high ductile fiber-reinforced mortar ; advanced reinforcing detailings ; seismic performance ; interior beam-column joint ; cyclic loads |
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Abstract |
In this study, experimental research was carried out to evaluate and improve the seismic performance of high strength R/C interior beam-column joints regions using advanced reinforcing detailings and high ductile fiber-reinforced mortar. Five specimens of retrofitted the beam-column joint regions using advanced reinforcing detailings and high ductile fiber-reinforced mortar were constructed and tested for their retrofitring performances. Specimens designed by retrofitting the interior beam-column joint regions (IJIR series) of existing reinforced concrete building showed a stable mode of failure and an increase in load-carrying capacity. Specimens of IJIR series, designed by the retrofitting of advanced reinforcing detailings and high ductile fiber-reinforced mortar in reinforecd beam-column joint regions increased its maximum load carrying capacity by 114.2~123.5% and its energy dissipation capacity by 1.55~1.85 times in comparison with the standard specimen of SIJC with a displacement ductility of 5.
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