The coupling beam is recognized that critical structural elements, those whose yield strength is likely to be exceeded in the event of a severe earthquake, should be designed and detailed to exhibit large ductilities and stable hysteretic loop. As a result, the alternation reinforcement details of reinforced concrete coupling beam was investigated.

Abstract
 1. 서 론
 2. 실험체 계획
 3. 실험결과 및 고찰
 4. 결 론
 참고문헌

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