Diagonally reinforced concrete coupling beams (DRCB) play an important role in coupled shear wall systems since these elements dissipate most of seismic input energy under earthquake loading. For reliable seismic performance evaluation using nonlinear response history analysis, it is important to use an accurate analytical model for DRCBs. In this study, the Pinching4 model is used as a base model to simulate the cyclic behavior of DRCBs. For simulating the cyclic behavior of DRCBs using the Pinching4 model, the analytical parameters for backbone curve, pinching and cyclic deterioration in strength and stiffness should be computed. To determine the proper values of the constituent analytical parameters efficiently and accurately, this study proposes the empirical equations for the analytical parameters using regression analyses. It is shown that the hysteretic behavior of coupling beams can be simulated efficiently and accurately using the proposed numerical model with the proposed empirical equations of model parameters.

A B S T R A C T
 1. 서 론
 2. 해석모델 구성 및 실험체 선정
  2.1 뼈대곡선
  2.2 핀칭
  2.3 강도 및 강성 저하
  2.4 실험체 선정
 3. 해석 매개변수의 경험식 제안
  3.1 뼈대곡선
  3.2 핀칭 그리고 강도 및 강성 저하 매개변수
 4. 검 증
 5. 결 론
 감사의 글
 REFERENCES

• 고혜영(한양대학교 건축공학과) | Koh, Hyeyoung
• 한상환(한양대학교 건축공학과) | Han, Sang Whan Corresponding author
• 이창석(한양대학교 건축공학과) | Lee, Chang Seok