Abstract:
A technique of a steel reinforced concrete consolidated hinged joint in prefabricated slab bridges was proposed. To research the consolidation effect of this new method, specimens of different reinforcement methods were tested with static and fatigue loading. Based on the experimental results, it is found that the hinged joint specimens with SRC exhibited better bearing capacity, global deformation capacity and fatigue capacity than other reinforced joints. Meanwhile, based on the damage phenomena, force-deformation relationships observed during static tests on different ways of reinforced joints, two typical failure patterns were identified, that is, interfacial flexural failure and interfacial flexural-shear failure. Two analytical strength models were established corresponding to the aforementioned two failure patterns. Error analysis shows that these two models give accurate and reliable predictions, which can provide practical references for the seismic design of joints.