Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Seismic Behavior of Slender Coupling Beams Constructed with High-Performance Fiber Reinforced Cementitious Composite

고성능 섬유 보강 시멘트 복합체(HPFRCC)를 적용한 세장한 연결보의 내진거동 평가

  • 한상환 (한양대학교 건축공학부) ;
  • 권현욱 (한양대학교 건축공학부) ;
  • 신명수 (울산과학기술대학교 도시환경공학부) ;
  • 이기학 (세종대학교 건축공학부) ;
  • 조영욱 (삼성물산 건설부문)
  • Received : 2013.08.06
  • Accepted : 2013.09.26
  • Published : 2013.11.01
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Abstract

The hysteretic behavior of diagonal reinforced coupling beams is excellent during earthquakes. However, construction of the diagonal reinforced coupling beams is difficult due to complex reinforcement details required by current code procedures (ACI 318-11). Due to the detail requirement, reinforcement congestion and interference among transverse reinforcement always occur during construction field. When the aspect ratio of the beam is large, the interference of reinforcement becomes more serious. The objective of this paper is to simplify the reinforcement details of slender coupling beams by reducing transverse reinforcement around the beam perimeter. For this purpose, high- performance fiber reinforced cementitious composites are used for making coupling beams. Experiments were conducted using three specimens having aspect ratio 3.5. Test results showed that HPFRCC coupling beams with half the transverse reinforcement required by ACI 318-11 provided identical seismic capacities to the corresponding coupling beams having requirement satisfying the requirement specified in ACI 318-11.

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References

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