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Title |
Shear Force Redistribution Effect by Application of Bilinear Shear Model to RC Wall-Type Apartment Buildings
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Authors |
홍나래(Na-Rae Hong) ; 김희도(Hui-Do Kim) ; 강수민(Su-Min Kang) ; 엄태성(Tae-Sung Eom) |
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DOI |
https://doi.org/10.4334/JKCI.2022.34.4.417 |
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Keywords |
이선형 전단모델; 벽체 전단력 재분배효과; 비선형 시간이력해석; 성능기반 내진설계 bilinear shear model; shear force redistribution effect; earthquake time history analysis; performance-based seismic design |
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Abstract |
Currently, in the performance-based design of high-rise wall-type apartment buildings, the shear model for RC walls is used, assuming the shear behavior is elastic. However, this assumption does not reasonably describe the ultimate shear behavior of RC walls. This study quantitatively verified the effectiveness of the bilinear shear model of RC walls proposed recently in the Korean design guidelines through comparison of existing test results. And, the characteristics of building behavior according to application of shear model was analyzed through time history analysis. The analysis variables are the elastic shear model (0.5G, 1.0G) and the bilinear shear model. The analysis results showed that when the bilinear shear model was used, the shear force at the bottom of each building was reduced, and the shear forces in the RC walls were redistributed, so that the shear stress was evenly distributed to individual walls. Based on these investigation results, reasonable and economic performance-based seismic design can be achieved by using the bilinear shear model of the RC wall.
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