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http://dx.doi.org/10.11112/jksmi.2015.19.2.160

Improvement and Seismic Performance Evaluation of RC Exterior Beam-Column Joints Using Recycled Coarse Aggregate with Hybrid Fiber  

Ha, Jae-Hoon (사)건설기술정책연구원)
Ha, Gee-Joo (경일대학교 건축공학과)
Shin, Jong-Hak (경일대학교 건축공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.19, no.2, 2015 , pp. 160-169 More about this Journal
Abstract
In this study, experimental research was carried out to improve the seismic performance of reinforced concrete exterior beam-column joint regions using replacing recycled coarse aggregate with hybrid fiber (steel fiber+PVA fiber) in existing reinforced concrete building. Therefore it was constructed and tested seven specimens retrofitting the beam-column joint regions using such retrofitting materials. Specimens, designed by retrofitting the beam-column joint regions of reinforced concrete building, were showed the stable failure mode and increase of load-carrying capacity due to the effect of crack control at the times of initial loading and bridge of retrofitting hybrid fiber during testing. Specimens BCJGPSR series, designed by the retrofitting of replacing recycled coarse aggregate with hybrid fiber in reinforecd beam-column joint regions were increased its maximum load carrying capacity by 1.01~1.04 times and its energy dissipation capacity by 1.06~1.29 times in comparison with standard specimen BCJS. Also, specimen $BCJGPSR_1$ were increased its energy dissipation capacity by 1.33~1.65 times in comparison with specimens BCJS, BCJP and BCJGPR series for a displacement ductility of 9.
Keywords
Recycled coarse aggregate; Hybrid fiber; Seismic performance; Exterior beam-column joint;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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