Where the self weight of the overall slab needs to be considered, the quantity of in-situ concrete required can be reduced by the introduction of polystyrene void forms supplied and fixed to the precast panel during manufacture. In this study, new I-slab system with polystyrene form and precast concrete deck is proposed to reduce the construction period and the self weight of the slab. This paper presents experimental data on the punching shear of the connections between I-slabs and column. Five interior slab-column connections were tested. The main objectives of experiments were to investigate the effects of the arrangement of polystyrene form, the effects of shear reinforcements, the shapes of column, and the effects of the existence of polystyrene form. Structural performance of slab-column connections was evaluated on the basis of failure mode, load-displacement curve, and punching shear strength. Based on the test results, the critical punching shear sections were changed as test variables, so the punching shear strengths were very different.
Seung-Hun Kim Cheng-gao Li In-Seok Kang Han-Seung Lee Ki-Jang Lee Kang-Kun Lee
Assistant Professor, Dept. of Architectural Engineering, Hanbat National University, Deajeon, Korea Associate Professor, College of Architecture and Civil Engineering, Beijing University of Technology Doctors course, Department of Architectural Engineering, Hanyang University, Kyeonggi-do, Korea Associate professor, School of Architecture and Architectural Engineering, Hanyang University,Kyeong Department Manager, Technical Advisory Part Engineering Team, Engineering & Construction Division,Sa