Hello,
I am designing a multi-column pier substructure for a bridge. The substructure model is connected to the superstructure so I am able to auto-generate the superstructure dead load, Braking load, and Permit Live Loads. However, the button to generate design live loads is inactive. I thought I made a mistake in the original model, I have recreated the model three times and encountered the same problem each time. Does anyone know why I can't auto-generate live loads?