Calculation of the M-φ Curve of Cylinder Reinforcing Concrete Pier by Numerical Method

It is always a difficult problem to solve the M φ curve of pier in elas plastic phase for bridge aseismic analysis.To solve the problem,the M φ curve of cylinder reinforcing concrete pier was calculated through numerical method in elastic and elas plastic phase.The program was developed in visual C ++ . A bridge was calculated as an example using this method.The result proved that this method was simple?practical and reliable.