Coupling beams serve as primary source of energy dissipation in coupled shear wall systems during large earthquakes. However, the overestimation of the shear strength of diagonally reinforced coupling beams may be adverse effect on the seismic performance of coupled shear wall systems. In order to force coupling beams to properly work during earthquakes, coupling beams should be designed with accurate shear strength equations. The objective of this study is to propose the accurate shear strength equation for slender diagonally reinforced coupling beams. For this purpose, experimental tests were conducted using three diagonally reinforced coupling specimens with different amount of transverse reinforcement under reversed cyclic loads to evaluate the hysteretic behavior of the specimens. The test results show that transverse reinforcement of slender diagonally reinforced coupling beam affects the maximum strength and drift ratio.

1. 서 론
 2. 실험체 계획 및 실험결과
  2.1 실험체 계획
  2.2 실험체 설치 및 가력 방법
  2.3 재료 시험
  2.4 하중-변위 관계
  2.5 강성 저하와 에너지 소산
 3. 횡보강근이 전단강도에 미치는 영향 평가
 4. 전단강도식 제안
 5. 결 론
 / REFERENCES /

• 한상환(한양대학교 건축공학부) | Han Sang Whan Corresponding author
• 강진욱(한양대학교 건축공학부) | Kang Jin Wook
• 한찬희(한양대학교 건축공학부) | Han Chan Hee