Behavior of reinforced concrete under cyclic loading is analyzed by means of proposed moment-curvature relationship model based on the point that reinforcing steel governs moment-curvature relationship of reinforced concrete under cyclic loading. The advantages of this proposed model comparing to layered section approach are short calculation time and less memory space in application to large structures.
Also, the difference between established models and the proposed model lies in that the proposed model uses monotonic envelope curve of moment-curvature relationship considering bond-slip effect and curved transition to represent Baushinger effect of reinforcing steel.
If structures are governed by shear force in case of low depth of span ratio, then pinching effect tending toward origin is occurred, and even though in finite element method, in general, the rotation of fixed-end is assumed as zero, but actually rotation is occurred in fixed-end. So these phenomena must be considered in analysis, the proposed model is corrected appropriately in these cases.
To verify validity of the proposed model, the numerical results, obtained from finite element method analysis, is compared with experimental results available in literature
