By default, consideration of reinforcement is not required for determining internal forces and deformations using finite element analysis. In the structural analysis, calculations are based on the concrete cross-section. The defined reinforcement is then included in the concrete design.
For a nonlinear analysis of reinforced concrete members, it is necessary to include the reinforcement in the finite element analysis. To do this, you need to activate the reinforcement using a structure modification for reinforced concrete, as shown below.
