Differences in results can also be cause by nonlinear elements introduced in the model. For example, Tension Only members could be deactivated in a LC but activated in a CO because of loading changes. Keep nonlinear elements in mind when adding LCs together in a result combination, as results of failing objects will be set to zero during the super-positioning of the individual load cases. This could lead to unexpected results.
Question
I would expect the results from my load combination (CO) set to a linear analysis to equal the summation of the results from my load cases (LC) also set to a linear analysis. Why do the results not match?
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In the Concrete Design add-on, you have the option to define an existing vertically oriented punching shear reinforcement. This is then taken into account in the punching shear design.
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