Select this button to define the dimensions of the pier cap, including the size, start and end elevation, skew angle, and factor of reduced moment of inertia. Clicking this button will activate the Cap Parameters screen.

Regardless of the type selected, Substructure will define sections that are symmetrical about the centerline of the cap in the Z-direction.

Click OK after entering all required information and a 3-D representation of the cap will appear in the model area on the Geometry screen.

Substructure assumes that the top surface of a cap is straight. The start and end elevation is at the top of the cap. The skew angle of a cap is only used for auto load generation.

The section of a pier cap must be rectangular. Substructure does not allow a circular section or rectangular section with rounded corners. The cap size can be from 5 in to 200 in, using US units, or from 100 mm to 5000 mm, using metric units.

Please specify cap elevations and all dimensions on this dialog according to the selected pier view direction. For additional information, please see Pier Configuration Button and Pier View Direction in Theory.