Cyclic Behavior of High-Performance Fiber-Reinforced Cement Composite Coupling Beam Having Diagonal Reinforcement

Authors:
  • HKHyun-Wook Kwon
    Hyun-Wook Kwon
  • YJYong-Ryul Jeon
    Yong-Ryul Jeon
  • KLKi-Hak Lee
    Ki-Hak Lee
  • MSMyung-Su Shin
    Myung-Su Shin
  • SHSang-Whan Han
    Sang-Whan Han
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Abstract
Coupled shear walls can provide an efficient structural system to resist lateral force. However, the reinforcement detail for diagonally reinforced coupling beams required by ACI-318 often causes the difficulties in construction due to the reinforcement congestion and interference among reinforcement. This paper is to evaluate cyclic behavior of High-Performance Fiber-Reinforced Cement Composite (HPFRCC) coupling beams having reduced transverse reinforcement around the beam perimeter. Experimental test was conducted using three specimens having a beam aspect ratio 2.0. Test results showed that HPFRCC coupling beams with half of transverse reinforcement required by ACI-318 provided similar energy dissipation capacities compared with the coupling beams having reinforcement satisfy the requirement of ACI-318.clos