논문 국내 국내전문학술지(KCI급) 구속상세가 SD400 및 SD500 확대머리 이형철근의 겹침이음에미치는 영향에 관한 실험적 연구
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2015-01
- 저자명 김승훈
- 학술지명 한국구조물진단유지관리공학회 논문집
- 발행처명 한국구조물진단유지관리공학회
- 발행국가 국내
- 논문언어 외국어
- 전체저자수 1
홈페이지논문 초록 (Abstract)
KCI 2012 and ACI318-11 contains development length provisions for the use of headed deformed bars in tension and does notallow their tensio n lap splices. In ACI318-11, the confinement factor, such as transverse reinforcement factor, is not used tocalculate the development length of headed bars. The purpose of this experimental study is to evaluate t he effect of confinementdetails to the lap splice performance of headed deformed reinforcing bars in grade SD400 and SD500. The confinement details arestirrups and tie-down bars in lap zone. Test results sho wed that specimens with only stirrups had the brittle failure and could notincrease lap strengths, and that specimens with composite confinements by stirrups and tie-down bars had the flexural strengthsover than nominal flexural strengths. Stirrups wit h tie-down bars can have an effect on improvement in lap splice of hea ded barsin grade SD400 and SD500.