논문 국내 국내전문학술지(KCI급) Pullout Test of Headed Reinforcing Bar in RC or SFRC Members with Side-Face Blowout Failure
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2020-03
- 저자명 김승훈
- 학술지명 Architectural Research
- 발행처명 대한건축학회
- 발행국가 국내
- 논문언어 외국어
- 전체저자수 3
홈페이지논문 초록 (Abstract)
In this study, side-face blowout failure strength of high strength headed reinforcing bar, which is verticallyanchoring between RC or SFRC members, is evaluated throughout pullout test. The major test parameters are contentratio of high strength steel fibers, strength of rebar, length of anchorage, presence of shear reinforcement, and the sideconcrete cover thickness planned to be 1.3 times of the rebar. In pullout test, tensile force was applied to the headedreinforcing bar with the hinged supports positioned 1.5 and 0.7 times the anchorage length on both sides of the headedreinforcing bar. As a result, the cone-shaped crack occurred where the headed reinforcing bar embedded and finally sidefaceblowout failure caused by bearing pressure of the headed reinforcing bar. The tensile strength of specimens increasedby 13.0 ~26.2% with shear reinforcement. The pullout strength of the specimens increased by 3.6 ~15.4% according tosteel fiber reinforcement. Increasing the anchoring length and shear reinforcement were evaluated to reduce the stressbearing ration of the total stress.