Answer:
The need to account for tension member nonlinearities depends on the analysis objective. If the primary aim is to determine base shear forces for comparison with other horizontal actions, neglecting the nonlinearities of tension members is typically acceptable and can be considered a conservative approach. However, for precise design of the tension members themselves, it is essential to consider their nonlinear behavior. Methods such as deactivation should be employed to accurately capture these effects and ensure the integrity and safety of the design.
