Browse > Article

A Parameter Study of Internally Confined Hollow Reinforced Concrete Piers  

Choi, Jun-Ho ((주)이산 상하수도부)
Yoon, Ki-Yong (선문대학교 토목공학)
Han, Taek-Hee (서울메트로 기술연구소)
Kang, Young-Jong (고려대학교 건축사회환경공학부)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.10, no.4, 2010 , pp. 17-24 More about this Journal
Abstract
The hollow RC(Reinforced concrete) pier has the merit of lightweight pier compared with solid RC pier. However, the hollow RC pier shows a low ductile behavior due to brittle failure of inside concrete. To overcome this problem, the internally confined hollow reinforced concrete column has been developed. In this study, the behavior of internally confined hollow RC piers were evaluated with safety ratio, ductility, total material cost, the total weight of the pier, etc. The chosen parameters for the study are hollow ratio, thickness of internal steel tube, intervals between vertical re-bars, numbers of horizontal re-bars, and strength of concrete. As a result of parameters study, the usage of a minimum necessary thickness of the internal steel tube is the most effective.
Keywords
Steel tube; Parameter study; Hollow pier; Hollow ratio; Confinement; Ductility;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Han, Taek-Hee (2005) Development of Enhanced Ductile Hollow Columns with Internal Confinement, Thesis for the Degree of Doctor of Philosophy, Korea University.
2 Mander, J.B., Priestly, M.J.N., Park, R. (1988) Theoretical Stress-Strain Model for Confined Concrete, Journal of Structural Engineering, ASCE, Vol. 114, No. 8, pp.1804-1826.   DOI   ScienceOn
3 Park R. (1988) State-of-the Art Report on Ductility Evaluation from Laboratory and Analytical Testing, Proceedings of 9th World Conference on Earthquake Engineering, Tokyo-Kyoto, Japan, Vol. 8, pp.605-616.
4 Zahn, F.A., Park, R., and Priestly. M.J.N. (1990) Flexural Strength and Ductility of Circular Hollow Reinforced Concrete Columns without Confinement on inside face, ACI, Vol. 3, No. 4, pp.156-166.
5 건설교통부 (2005) 도로교설계기준, 한국도로교통협회.
6 한승룡, 임남형, 강영종, 이규세 (2003) 강관 보강 중공 R.C 기둥의 연성 평가 해석, 한국강구조학회 논문집, 제15권, 제1호, pp.1-8.
7 한택희, 김홍중, 김영종, 강영종 (2006a) 원형 강관 삽입 중공 RC 기둥의 내부구속 효과 연구, 한국토목학회논문집, 제26권, 제4호, pp.565-575.
8 한택희, 박종섭, 윤기용, 강영종 (2006b) 콘크리트의 재료 비선형과 구속효과를 고려한 내부 구속 중공 RC 기둥의 축력-모멘트 상관도 작성, 대한토목학회 2006년도 정기 학술대회 논문집, pp. 654-657.
9 한택희, 한상윤, 강영종 (2007) 내부 구속 중공 철근 콘크리트부재의 비선형 재료 모델 개발, 대한토목학회논문집, 제27권, 제1호, pp.11-26.
10 Haftka, R. and Nachbar, W. (1970) Post buckling analysis of an elastically restrained column, Int. J. Solids Structures, Vol. 6, pp.1433-1449.   DOI   ScienceOn