Intermediate Diaphragm [PIG]

Intermediate diaphragms placed between supports along a precast I-girder span.

Intermediate Diaphragm

Connected Girders: Girders tied together by the intermediate diaphragm.

Station [Start/End]: Station along the PGL at which the diaphragm is placed. May be specified as Start, End, or a numeric value.

Diaphragm Station: Numeric station along the PGL (measured from start-of-bridge) at which the diaphragm is placed. Only used when Station is not Start/End.

Skew Angle: In-plan rotation of the diaphragm. Positive rotates clockwise; negative counterclockwise. Only applicable when the station is a numeric value.

Depth: Vertical depth of the diaphragm.

Thickness (Downstation): Longitudinal thickness of the diaphragm on the downstation face. Use together with Thickness (Upstation) to model a tapered diaphragm.

Thickness (Upstation): Longitudinal thickness of the diaphragm on the upstation face. Use together with Thickness (Downstation) to model a tapered diaphragm.

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

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

Material: Concrete material assigned to the diaphragm.

FEM

Cap Connection [Yes/No]: When Yes, generates a FE connection between the diaphragm top and the pier-cap top.

Cap Connection Type [Rigid/Pin]: Controls whether the cap connection is rigid or pinned.

Deck Connection [Yes/No]: When Yes, generates a FE connection from the diaphragm top to the deck.