Evaluation of Structural Behavior and Serviceability on Transverse Connection for Modular Slab Bridge System

Jin-Woong Choi Sang-Seung Lee Sun-Kyu Park Sung-Nam HongAbstractRecently, in field of bridge construction, modular technology has been studied to reduce construction period, traffic impact andenvironmental impact. This study is a part of research related to the modular bridges. The aim of the study is to analyze the structural behavior and evaluate a serviceability for transverse connection of modular slab bridge. A total of four specimens werefabricated. including a control beam for finding the maximum load by static test. And one control beam and two segmental beamswere fabricated for cyclic loading test. As the test result, the beams that were introduced 100% of the design prestressing force showed a smaller maximum deflection, residual deflection and crack width than the control beam. The beam for serviceability evaluation was satisfied with structural serviceability limits of the deflection and crack. Keywords : Modular bridge, Slab, Transverse connection, Prestressing, Cyclic load, Serviceability