Abstract：Due to the two nonlinear factors involved the materials of the concrete and reinforced bar and the interaction of two materials, the whole damage process of the RC structures could hardly be simulated based on the conversional methods. In the present work, the four-parameter damage model which considers the material nonlinearities, combined with the single spring joint element method based on mixed coordinate system which is used to simulate the interaction of the two materials is introduced to depict the damage process of RC strctures. Numerical examples not only demonstrate the validity and accuracy of the proposed approach but also show that this method could be applied to engineering application.
2016, Vol. 37 
