Recently, many types of hybrid structures with steel and concrete materials are being developed. A corrugated steel web PC box bridge is one of these hybrid structures. However, this type of bridge has not been adopted yet for railway bridges, though these bridges have been constructed for highway bridges. In this paper, we aim to confirm fatigue durability of joint part connecting the corrugated steel web plate with a concrete slab. The static and fatigue loading tests were carried out with a full-scale model to simulate a real railway bridge under out-of-plane cyclic bending. As a result, it was clarified that both of two different types of joint part, called constraint reinforced bar type and flat bar type, had enough fatigue durability.

Copyright (c) 2002 Railway Technical Research Institute