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Title |
Analysis on the Flexural Behavior of Existing Reinforced Concrete Beam-Column Structures Infilled with U-Type Precast Wall Panel
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Authors |
손국원(Guk-Won Son) ; 유승룡(Sung-Young Yu) ; 임철우(Cheol-Woo Lim) ; 주호성(Ho-Seong Ju) |
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DOI |
http://dx.doi.org/10.11112/jksmi.2015.19.5.056 |
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Keywords |
채움 ; 내진보강 방법 ; 프리캐스트 콘크리트 ; 벽패널 ; 재 보강 ; 준 정적하중 실험 ; 휨 Infilled ; Seismic resistant method ; Precast concrete ; Wall panel ; Retrofit ; Quasi static test ; Flexural |
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Abstract |
This study aims at developing a new seismic resistant method by using precast concrete wall panels for existing low-rise, reinforced concrete beam-column buildings such as school buildings. Three quasi-static hysteresis loading tests were performed on one unreinforced beam-column specimen and two reinforced specimens with U-type precast wall panels. Seismic resistant test of anchored and welded steel plate connections manifested an average of 2.8 times increase in the maximum loading (average 591.8 kN) in comparison to unreinforced beam-column specimen. The maximum drift ratios were also shown between 1.4% and 2.7%. An analytical study was performed while assuming the RC column on the right side and the vertical element of the reinforced PC panel to behave in completely composite manner and the RC column on the left side and PC panel to behave in completely non-composite manner when loading was exerted from upper right end of RC frame of specimen to its left side. It was found with the assumptions that the overall flexural behavior in principle agreed with the experimental result.
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