Abstract
The authors conducted tests of RC slab specimens with UFC panels by using two types of different thickness under static loads. For two different types of thickness, the total thickness of the RC slab specimens were 110mm and 130mm had been prepared with 20mm of UFC panels. Moreover, the authors proposed the mechanical model for punching shear and load-carrying capacity equation based on failure conditions. The failure conditions of the slabs were that the RC slabs failed in punching shear, and the composite surface failed in delamination of on the UFC panel was subjected to single shear. Furthermore, the authors proposed the mechanical models for the punching shear of UFC panel using in the RC slab as following two cases : the composite surface of the UFC panel failed in shear, and the UFC panel failed in flexure as the panel was subjected to flexural tensile forces. The theoretical punching shear load-carrying capacity of UFC panel using in the RC slab was determined from the smaller one of the absolute values calculated in the two cases.
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