Experiments and Simulation of Flexural-Shear Dominated RC Bridge Piers under Reversed Cyclic Loading

Abstract eng:
In recent earthquakes, a large number of reinforced concrete (RC) bridges were severely damaged as a result of a mixed flexural-shear failure of the bridge piers. An integrated experiment and analysis research program is undertaken in this paper to study the seismic performance of flexural-shear dominated RC bridge piers. In the first part, cyclic loading tests on 6 RC bridge piers were carried out experimentally. The damage states, ductility, and energy dissipation of the piers were compared with each other. In the second part, modeling approaches describing the hysteretic response of the piers were investigated by using ANSYS software. A set of model with different parameters was selected and evaluated through comparison with experimental results. Then, a modified analysis model is presented and the accuracy of the model has been verified by comparing the calculated results with experimental ones.

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