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Title |
An Experimental Study on the Influence of Masonry InFilled Walls on the Seismic Performance of Reinforced Concrete Frames with Non-seismic Details
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Authors |
김경민(Kyoung-Min Kim) ; 천주현(Ju-Hyun Choen) ; 백은림(Eun-Rim Baek) ; 오상훈(Sang-Hoon Oh) ; 황철성(Chul-Sung Hwang) |
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DOI |
https://doi.org/10.11112/jksmi.2017.21.3.114 |
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Keywords |
비내진상세 ; 조적채움벽 ; RC 골조 ; 내진성능평가 Non-seismic details ; Masonry infilled wall ; Reinforced concrete frame ; Seismic performance |
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Abstract |
In this paper, the effect of the masonry infill walls on the seismic performance of the reinforced concrete(RC) frames with non-seismic details was evaluated through the static test of an masonry infilled RC frame sub-assemblage with non-seismic details of real size, and comparison with the test results of the RC frame sub-assemblage with non-seismic details. As the test results, lots of cracks occurred on the surface of the entire frame due to the compression of the masonry infilled wall, and the beam-column joint finally collapsed with the expansion of the shear crack and buckling(exposure) of the reinforcement. On the other hand, the stiffness of the shear force-story drift relationship decreased due to the wall sliding crack and column flexural cracks, and the strength finally decreased by around 60% of the maximum strength. The damage that concentrated on the upper and lower parts of columns was dispersed in the entire frame such as columns, a beam, and beam-column joints due to the wall, and the specimen was finally collapsed by expansion of the shear crack of the joint, not the shear crack of the column. Also, the stiffness of RC frame increased by 12.42 times and the yield strength by 3.63 times, while the story drift at maximum strength decreased by 0.18 times.
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