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Title |
Effect of Bond Action of Longitudinal Bars on Shear Transfer Mechanism in RC Beams
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Keywords |
부착 작용 ; 부착강도 ; 전단저항기구 ; 트러스기구 ; 텐션쉬프트 현상 bond action ; bond strength ; shear transfer mechanism ; truss mechanism ; tension shift |
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Abstract |
The uniform truss mechanism is widely accepted as a shear transfer mechanism in reinforced concrete members. However, the uniform truss action cannot be expected when the bond stress distribution is not constant along longitudinal bars. A test method in which only the truss action takes place is developed and conducted to investigate the truss actions under various bond contributions. Based on the experimental results and analysis, the following findings can be obtained: 1) The bond stress distribution depends on the axial compression force, the amount of shear reinforcement and loading conditions. 2) The analysis using the combined truss model consisting of uniform and fan-shape trusses can predict the experimental results
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