Retracted: Nonlinear Behavior Analysis of Dams Under Earthquake Excitation

In this research, the nonlinear behaviors of dams under earthquake excitation are analyzed. Nonlinear model of dams are established based on energy equations. Nonlinear behavior such as periodic, quasi-periodic, and chaotic responses are determined based on phase diagrams and Poincare maps. Mover, with the utilization of proposed Periodicity-Ratio (P-R) method, the nonlinear behaviors are diagnosed within large rang of system parameters, which may provide guidance for the design of geometric parameters of a dam subjected to earthquake excitations.