Title |
A Study on the Nonlinear Finite Element Analysis of Reinforced Concrete Structural Walls |
Abstract |
Reinforced concrete structural walls are widely considered to provide an efficient bracing system and to offer great potential for both lateral load resistance and drift control. In the study theoretical formulas are suggested for nonlinear finite element analysis of the reinforced concrete structural walls. The concrete nonlinearities are reflected in the constitutive relation of plane stress by strength magnification factor following stress ratio and by reduction factor which is accounted for nonlinear material properties of concrete. Rectangular elements with eight-nodes are used for concrete structures and russ elements are adopted for reinforcing bars in finite element formulation.The proposed analytical model is capable of predicting the stress-strain relationship of structural walls within reasonable accuracy. The predictions of the model are compared with experimental results reported in the literature and the comparisons are judged to be good. |