Earticle

초록

영어

In this study, it is expected that the application of head which is used for mechanical anchor instead of standard hook applied to later tie solves workability matters and the increased effective confinement area by head conclusively confines core concrete effectively, which contributes to the increase in strength and ductility of column. Thus, by the experiment on seven 300x300 mm reinforced concrete columns subjected to uniaxial compression, the effect on the strength and ductility of the columns mediated by head was assessed. In addition, to estimate increased strength increase coefficient, lateral confinement model based on Sheikn and Uzumeri's model was suggested. As a result, ductility of specimen applied head was shown to be higher when the space between lateral ties is wider, and it is considered that the suggested model could be applied for predicting the increased strength enhancement coefficient of column by head.

목차

Abstract
 1. 서 론
 2. 실험
  2.1 실험체 계획 및 제작
  2.2 실험체 가력방법
 3. 실험결과
  3.1 파괴양상
  3.2 하중-변위관계
  3.3 연성비평가
  3.4 내부띠철근의 하중-변형률 관계
 4. 정착판으로 구속된 기둥의 강도증가계수산정
  4.1 정착판으로 인하여 효과적으로 구속된 코아콘크리트의 면적
  4.2 임계단면에서의 정착판으로 횡구속된 코아콘크리트의 면적
  4.3 강도증가계수 비교
 5. 결 론
 참고문헌

저자

• 윤승조 [ Yoon, Seung-Joe | 충주대학교 건축공학과 교수, 공학박사 ]
• 김성수 [ Kim, Seong-Soo | 청주대학교 건축공학과 교수, 공학박사 ]
• 서수연 [ Seo, Soo-Yeon | 충주대학교 건축공학과 교수, 공학박사 ]
• 이대교 [ Lee, Dea-Kyu | 청주대학교 건축공학과, 박사과정 ] 교신저자

참고문헌