Abstract
Though a lot of bridges which are made from steel or concrete were constructed until now in Japan, it was found here and there for decrepit or damaged bridges now. It needs for these bridges to repair and reinforcement by suitabale and practical methods. In this paper, one of the reparing method of the deteriorated RC slabs are proposed using aluminum alloy which has lightweight and good corrosion resistance. The aim of this study is to investigate the possivility of use aluminum alloy as members of the girder bridge by comparison with steel girder bridge. The static and dynamic behavior of four girder bridge models combined of RC slab, steel girder, aluminum slab and aluminum girder was clarified by numerical analysis using ABAQUS program. From these results, it was found that the ultimate strength of the girder bridge with aluminum slab replace of RC slab was enough and the 30% weight of this girder was able to reduce.
