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Title |
Macro Model for Nonlinear Analysis of Reinforced Concrete Walls
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Authors |
김동관 ; 엄태성 ; 임영주 ; 이한선 ; 박홍근 |
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Keywords |
비선형 해석 ; LDLEM ; 거시 모델 ; 반복 하중 ; 전단벽 nonlinear analysis ; LDLEM ; macro model ; cyclic loads ; shear wall |
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Abstract |
Reinforced concrete walls subjected to cyclic loading show complicated inelastic behaviors varying with aspect ratio, re-bar detail, and loading condition. In the present study, a macro model for nonlinear analysis of reinforced concrete walls was developed. For exact prediction of inelastic flexure-compression and shear behaviors, the macro model of the wall was idealized with longitudinal and diagonal uniaxial elements. The uniaxial elements consist of concrete and re-bars. Simplified cyclic models for concrete and re-bars under uniaxial loading was used. For verification, the proposed model was applied to slender, lowrise, and coupled walls subjected to cyclic loading. The results showed that the proposed method predicted the nonlinear behaviors of the walls with reasonable precision.
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