This is one of more powerful options available in Substructure. While defining each of the pier parameters, the program automatically generates a structural model to include all the nodes, members, and connectivity conditions (results shown in the list at the top of the screen). In addition, you can add or remove new checkpoints to the pier structure, as well as define hinges at existing nodes, or choose to do cap design at Face of support or column center lines.

Click the Str. Model button to activate the Structural Model screen. To add additional checkpoints, input a value in the From Left field (under Additional Check Points) and click Add. It will appear in the list under Additional Checkpoints.