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Title |
Analytical Study on Seismic Performance Assesment of Reinforced Concrete Shear Wall using High-Strength Reinforcing Bar
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Authors |
천주현(Ju-Hyun Cheon) ; 김경민(Kyung-Min Kim) ; 박광민(Kwang-Min Park) ; 신현목(Hyun-Mock Shin) |
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DOI |
https://doi.org/10.11112/jksmi.2017.21.2.138 |
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Keywords |
고강도 철근 ; 철근콘크리트 전단벽체 ; 내진성능평가 ; 비선형 유한요소해석 ; RCAHEST High-strength reinforcing bar ; Reinforced concrete shear wall ; Seismic performance estimation ; Nonlinear finite element analysis ; RCAHEST |
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Abstract |
The purpose of this study is to establish a reasonable analytical method for the estimation of overall behavior characteristic from cracking to yielding of rebar and crushing of concrete and seismic performance of reinforced concrete shear wall with high-strength reinforcing bar. A total of 8 specimens of reinforced concrete walls which have constant aspect ratio and a variety of variables such as reinforcement ratio, reinforcement yielding strength, reinforcement details, concrete design strength, section shape and whether lateral restraint hoop were selected and the analysis was performed by using a non-linear finite element analysis program (RCAHEST) applying the proposed constitutive equation by the authors. The mean and coefficient of variation for maximum load from the experiment and analysis results was predicted 1.04 and 8%. The mean and coefficient of variation for displacement corresponding maximum load from the experiment and analysis results was predicted 1.17 and 19% respectively. The analytical results were predicted relatively well the fracture mode and the overall behavior until fracture for all specimens. These results are expected to be used as basic data for application of high-strength reinforcing bar to design codes in the future.
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