Recently, a composite girder with steel girder and concrete slab is reconsidered. However, cracks of concrete slab in the negative moment region over the internal support of the continuous composite girder are a serious subject. This paper dealswith the comparison between an inelastic behavior of the two-span continuous composite girder specimens and the one obtained from the rigid-body-spring model analysis. The comparison describes that the rigid-body-spring model analysis employed can relatively well simulate the inelastic behavior of the continuous composite girder and crack width of the concrete slab up to its ultimate state.
