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http://dx.doi.org/10.9712/KASS.2015.15.2.095

Estimation of Punching Shear Strength for Ultra High Performance Concrete Thin Slab  

Park, Ji-Hyun (Department of Architecture and Architectural Engineering, Seoul National University)
Hong, Sung-gul (Department of Architecture and Architectural Engineering, Seoul National University)
Publication Information
Journal of Korean Association for Spatial Structures / v.15, no.2, 2015 , pp. 95-103 More about this Journal
Abstract
UHPC(Ultra High Performance Concrete) is used widely with its remarkable performance, such as strength, ductility and durability. Since the fibers in the UHPC can control the tensile crack, the punching shear capacity of UHPC is higher than that of the conventional concrete. In this paper, seven slabs with different thickness and fiber volume ratio were tested. The ultimate punching shear strength was increased with the fiber volume ratio up to 1%. The shear capacity of specimens with the fiber content 1% and 1.5% do not have big differences. The thicker slab has higher punching shear strength and lower deformation capacity. The critical sections of punching shear failure were similar regardless of the fiber volume ratio, but it were larger in thicker slab.
Keywords
Failure behavior; Punching shear; Thin slab; UHPC;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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