Experimental research to evaluate the fatigue properties of replacement RC deck slabs provided with infill parts

Abstract

Precast replacement RC deck slabs have been proposed for road bridge decks managed by local governments. A feature of these deck slabs is that they have infill parts, and at the ends of the reinforcement in the anchorage area, two types of projection are provided to increase bond in the structure. In this research the fatigue properties of a proposed deck slab were verified. The results showed that the infill part was not a point of weakness and the fatigue properties were improved. Also, the number of equivalent cycle of RC deck slab with two types of infill part was 12.1 times and 15.1 times respectively as compared with standard RC deck slab.