Earticle

초록

영어

Concrete is one of the principal materials for the structures and it is widely used all over the world. While advanced technologies of concrete have been recently focused especially on developing high performance concrete in which possess high compressive strength and durability, such concrete shows extremely brittle failure under shear and tension. To improve such a poor properties, Ductile Fiber Reinforced Cementitious Composite(DFRCC) has been developed. This paper reports the mechanical properties of DFRCC and shear performances of beams using half precast DFRCC subjected to vertical load. The half precast beam, which DFRCC half precast is filled with concrete, expected to raises durability of concrete. DFRCC beams using Poly Vinyl Alcohol fibers and Polypropylene fibers, and general reinforced concrete beam are tested for comparison. The length of specimen is 1920mm, the section is 170x270(mm), the thickness of the DFRCC half precast is 35mm, the main bottom bar is D13, the tie bar is D6. The research results clearly showed that the proposed hybrid beam showed stable hysteresis behaviors than general concrete beam. Also, the cracks width of suggested hybrid beams decreased those of than general concrete beam.

목차

Abstract
 1. 서론
 2. 고인성시멘트복합체의 물리적 특성
  2.1 DFRCC의 재료
  2.2 DFRCC비빔 및 시험체 제작방법
  2.3 DFRCC의 실험결과
 3. 하이브리드 전단실험체 계획
  3.1 실험체 계획
  3.2 가력 및 측정방법
 4. 하이브리드 보부재의 전단실험 결과 및 분석
  4.1 전단실험 후의 파괴형상
  4.2 모멘트와 변형각 곡선
  4.3 최대 균열폭
  4.4 분석 및 고찰
 5. 결론
 참고문헌

키워드

고인성시멘트복합체 하프프리캐스트 변형경화 전단거동 다수균열 고내구성 DFRCC Half Precast Strain Hardening Shear Performance Multiple Crack High Durability

저자

• 김순철 [ Kim, Soon-Chul | 동신대학교 건축공학과 교수, 공학박사 ]
• 양일승 [ Yang, IL-Seung | 동신대학교 문화건축학부 전임강사, 공학박사 ] 교신저자
• 문연준 [ Moon, Youn-Joon | 동신대학교 건축공학과 교수, 공학박사 ]
• 황성철 [ Hwang, Sung-Chul | 광성(주) 기술연구소 책임연구원, 공학박사 ]
• 안현진 [ An, Hyun-Jin | 동신대학교 건축공학과 석사과정 ]

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