How does the SAP2000 treat P-delta effects of prestressing forces modeled by tendons for a suspension bridge?
If the tendons are modeled as loads, the tension stiffening effect is not included. However, the compression on the deck will cause P-delta effects. If the tendons are modeled as elements, the tension stiffening of the tendons and the compression softening of the deck will cancel, as should be the case for bonded tendons.
