Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)
- 2005.05a
- /
- Pages.79-82
- /
- 2005
Strategic Utilization of Fiber Reinforced UHSC in Slab-Column Connections
- Yoon, Young-Soo (Department of Civil and Environmental Engineering, Korea University) ;
- Lee, Joo-Ha (Department of Civil and Environmental Engineering, Korea University) ;
- Lee, Seung-Hoon (Institute of Tech., Samsung Engineering & Construction Co., Ltd.)
- Published : 2005.05.01
Abstract
This study reports on the structural characteristics of slab-column connections using an ultra-high-strength-fiber-reinforced concrete from new and retrospective data. The parameters investigated were the ' puddling ' of ultra-high-strength-fiber-reinforced concrete and the use of high-strength concrete in the slab. The effects of these parameters on the punching shear capacity, negative moment cracking, and stiffness of the two-way slab specimens are investigated. Furthermore, the ACI Code (2002), the CSA Standard (1994), the BS Standard (1985) and the CEB-FIP Code (1990) predictions are compared to the experimental results obtained from some slab-column connections tested in this experiment and those tested by other investigators. The beneficial effects of the ultra-high-strength-fiber-reinforced concrete puddling and of the use of high-strength concrete are demonstrated. It is also concluded that the punching shear strength of slab-column connections is a function of the flexural reinforcement ratio.
Keywords