Analytical Prediction of Collapse of RC Piers Induced by Geometrical Nonlinearity
To avoid complete collapse of structure and to protect human lives during earthquake, sufficient ductility is required. To achieve the aforementioned goal, structures are designed to fail in flexure. It is believed that such structures can undergo large ductility without brittle shear failure. If a RC pier designed to avoid shear failure is subjected to a major earthquake, the residual deformation becomes considerably high and P-delta effect due to the weight of superstructure and self-weight may govern the stability of the pier. This study analytically investigates the possibility of collapse of reinforced concrete piers accompanying the instability due to geometrical nonlinearity.