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Title |
Seismic Performance of Coupled Shear Wall Structural System with Relaxed Reinforcement Details
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Authors |
송정원(Jeong-Weon Song) ; 천영수(Young-Soo Chun) ; 송진규(Jin-Kyu Song) ; 서수연(Soo-Yeon Seo) ; 양근혁(Keun-Hyeok Yang) |
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DOI |
http://dx.doi.org/10.4334/JKCI.2016.28.2.187 |
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Keywords |
연결보 ; 대각보강 ; 주기하중재하 실험 ; FEMA P695 ; 동적증분해석(IDA) ; 내진성능평가 coupling beam ; diagonal bar ; cyclic loading test ; FEMA P695 ; incremental dynamic analysis ; seismic evaluation |
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Abstract |
The current seismic design code prescribes that coupling beam should be reinforced using diagonally bundled bars. However, the use of a diagonally bundled bars has a negative effect on constructability and economic efficiency. In the present study, the seismic performance of 4 coupling beams with the different details of reinforcement was evaluated through a cyclic reversal loading test. The specimens were constructed to measure the results of the experimental variable regarding the details of shear reinforcement. Next, the seismic performance of the coupled shear wall system evaluated by methods proposed in the FEMA P695. The cyclic reversal loading test results of this study showed that the performance of coupling beams with relaxed reinforcement detail was almost similar to that of a coupling beam with the ACI detail and meet the level which requested from standard. The result of the seismic evaluation showed that all coupling beams are satisfied with the design code and seismic performance.
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