Experimental study on fatigue durability and punching shear load-carrying capacity of steel-concrete composite hollow-core slab

Abstract

The authors have developed a steel-concrete composite hollow-core slab. The box-like components welded on lower steel plate has functions of reducing the weight of the slab and shear connectors between steel and concrete. The slab was verified to have sufficient fatigue strength through the fatigue tests with wheel running machine. Moreover, the punching-shear strength of the slab after fatigue test coincided well with one calculated by the conventional estimate equation.