End Diaphragm [SPIG]

End diaphragms at the extremities of a span are modeled using this workflow item.

Diaphragm Location [Start/End]: Defines where the diaphragm is placed — at the Start or End of the span — or at a manually specified station.

Connected Girders: Girders connected to the end diaphragm. The 3D and FE geometry is derived from the picked girders.

Depth: Vertical depth (Z axis) of the diaphragm.

Additional Overhang Length Transverse Dir. (Left): Distance from the leftmost girder centerline to the left edge of the diaphragm in the transverse direction (looking upstation along PGL).

Additional Overhang Length Transverse Dir. (Right): Distance from the rightmost girder centerline to the right edge of the diaphragm.

Thickness (Downstation w.r.t. Support Line): Thickness of the diaphragm measured downstation from the support line.

Thickness (Upstation w.r.t. Support Line): Thickness measured upstation from the support line.

Material: Concrete material assigned to the end diaphragm.

FEM

Cap Connection [Yes/No]: When Yes, the FE beam of the end diaphragm is generated to connect the bearing and the deck separately to the diaphragm; when No, the FE beam only connects the bearing to the diaphragm.

Cap Connection Type [Rigid/Pin]: Selects rigid or pinned behavior for the cap connection when Cap Connection is Yes; shown as Not Applicable when Cap Connection is No.

Rigid Section (Cap Connection): Section used for the rigid link between the diaphragm and the supporting pier cap when Cap Connection is enabled.

Deck Connection [Yes/No]: When Yes, the FE beam connects the diaphragm to the deck.