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Title |
Analytical Study on Behavior Characteristic of Shear Friction on Reinforced Concrete Shear Wall-Foundation Interface using High-Strength Reinforcing Bar
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Authors |
천주현(Ju-Hyun Cheon) ; 이기호(Ki-Ho Lee) ; 백장운(Jang-Woon Baek) ; 박홍근(Hong-Gun Park) ; 신현목(Hyun-Mock Shin) |
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DOI |
http://dx.doi.org/10.4334/JKCI.2016.28.4.473 |
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Keywords |
high-strength reinforcing bar ; reinforced concrete shear wall ; shear friction ; nonlinear finite element analysis ; RCAHEST |
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Abstract |
The purpose of this study is to provide analytical method to reasonably evaluate the complicated failure behaviors of shear friction of reinforced concrete shear wall specimens using grade 500 MPa high-strength bars. A total of 16 test specimens with a variety of variables such as aspect ratio, friction coefficient of interface in construction joint, reinforcement details, reinforcement ratio in each direction, material properties were selected and the analysis was performed by using a non-linear finite element analysis program (RCAHEST) applying the modified shear friction constitutive equation in interface based on the concrete design code (KCI, 2012) and CEB-FIP Model code 2010. The mean and coefficient of variation for maximum load from the experiment and analysis results was predicted 1.04 and 17% respectively and properly evaluated failure mode and overall behavior characteristic until failure occur. Based on the results, the analysis program that was applied modified shear friction constitutive equation is judged as having a relatively high reliability for the analysis results.
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