ELASTO-PLASTIC BEHAVIOR OF 3-DIMENSIONAL REINFORCED CONCRETE ABUTMENTS CONSIDERING THE EFFECT OF THE WING WALL

This study presents the elasto-plastic behavior of 3-dimensional reinforced concrete abutments with wing wall as a parametric. To analyze the structure, we used ABAQUS, the finite element software, with geometrical modeling of three dimensional solid elements (C3D8R) and two dimensional trusses (T3D2) for concrete and reinforcing bar, respectively. Four static horizontal loads were applied at half-height of parapet wall with the fixed boundary condition at the footing of abutment. Firstly, the analytical and experimental result of reinforced concrete beam was compared in this paper in order to check the validity of the numerical analysis. Then, numerical studies were carried out in four different abutment modeling app roaches including the proposed model of Type 4 in order to generate an appropriate abutment model.