Reinforced concrete walls can fracture quickly at lower ductility levels, causing catastrophic damage. As a result, accurate modelling of shear-dominant concrete walls is required in order to provide a solution strategy for nonlinear analysis. To predict the behaviour of thin-walled structures, the concrete damage plasticity model was considered in this article, which is computationally very efficient. Concrete and steel were treated as independent components until they were integrated at the section level to characterize the elemental behaviour. The predictions of the finite element model are validated by comparing them to existing experimental data. The load–displacement relationships of walls are then analysed under various stress situations to ensure that the suggested model is sound. The model was then utilized to undertake a series of numerical simulations to assess the impact of different nonlinearities on the response of vertically oriented rectangular wall. This investigation revealed some key insights about wall response.