Continuous beam and slab behavior in composite bridge support area without using expansion joint

Abstract

In a conventional bridge system, there is an expansion joint and a dilatation between superstructure and substructure. If it is not maintained properly, the damage can occur around the expansion joint and on the support. To overcome this problem an alternative type of structure is needed to provide better behavior in the support area. In this study, the type of continuous bridge without an expansion joint is used. Different from continuous bridges in general, in this case, two bearings are used on the pier to facilitate execution. Tests are conducted on two specimens with different types of connection so it is expected to give a significant difference of connection behavior. In the implementation of the test, gravity load is given with a displacement control method. The test results obtained that the ability to receive load of composite beam with steel profile connection has a higher capacity than composite beams with reinforced concrete connection. As for the stiffness value, composite beams with reinforced concrete connection have a higher value than the composite beam load with steel profile connection.