묶음 대각철근을 갖는 세장한 철근콘크리트 연결보의 이력거동

초록

Coupled shear walls are effective lateral force resisting system in which coupling beams link individual walls. Forimproving the energy dissipation capacity of coupling beams, diagonal reinforcement details were developed. However, it is difficultto construct diagonal reinforced coupling beams due to the congestion of reinforcement in the beam. For resolving the problem, thisstudy developed precast coupling beams with bundled diagonal reinforcement. To reduce the reinforcement congestion, bundleddiagonal reinforcement were placed in the coupling beam. To evaluate the cyclic performance of coupling beams with bundleddiagonal reinforcement, experimental test were conducted. For this purpose, two slender specimens with an aspect ratio of 3.5 weremade and tested. It was observed that the cyclic performance of the coupling beam with bundled diagonal reinforcement was similarwith that of the coupling beam with normal diagonal reinforcement placed according to design code to ACI 318-11.

키워드