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http://dx.doi.org/10.4334/JKCI.2005.17.4.513

Effect of Bond Action of Longitudinal Bars on Shear Transfer Mechanism in RC Beams  

Kim Kil-Hee (Dept. of Architectural Engineering, Kongju National University)
Publication Information
Journal of the Korea Concrete Institute / v.17, no.4, 2005 , pp. 513-520 More about this Journal
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
Keywords
bond action; bond strength; shear transfer mechanism; truss mechanism; tension shift;
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