Abstract
Bridge accessories such as parapets, duct, slab deck are commonly used in bridge structures, but their real effects on the structural behavior of the bridges are still unknown. In this study, experiments were performed on a railway bridge to confirm the contribution of the bridge accessories and their design details. Both displacements on key sections and sectional strains were measured in the test, and the theoretical results on the basis of the classical mechanics were provided to compare with the test results. In order to evaluate actual stiffness of the bridge, numerical studies were conducted, and the stress concentration on the concrete slab near the expansion joints was confirmed. The results obtained in this study can be used for improving the design method of new railway bridges and maintenance of old railway bridge structures.
