RF-CONCRETE NL | Input
The nonlinear calculation is activated by selecting the design method of the serviceability limit state. You can individually select the analyses to be performed as well as the stress-strain diagrams for concrete and reinforcing steel. It is possible to influence the iteration process by the control parameters of the convergence accuracy, the maximum number of iterations, the arrangement of layers in relation to the cross-section depth, or the damping factor.
You can set the limit values in the serviceability limit state individually for each surface or a surface group. Allowable limit values are defined by the maximum deformation, the maximum stresses, or the maximum crack widths. The definition of the maximum deformation requires an additional specification whether the non-deformed or the deformed system should be used for the design.
The nonlinear calculation can be applied to the ultimate and the serviceability limit state design. In addition, you can specify the concrete tensile strength or the tension stiffening between the cracks. It is possible to influence the iteration process by the control parameters of the convergence accuracy, the maximum number of iterations, and the damping factor.
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Physical and geometrical nonlinear calculation of beam and plate structures consisting of reinforced concrete