Spliced I Girder [SPIG]

Girder Parameters

Girder Layout: The Girder Layout defining the span arrangement and reference supports to which this girder belongs. A value must be provided.

Girder Start-End Section: Table describing the section at each station along the girder. Each row pairs a Support Line with an offset and a Section, letting the girder taper by segment.

Haunch Thickness: Haunch thickness between the top of the girder and the bottom of the deck. Variable along station when defined as station-dependent.

FEA Settings

Rigid Section: Section used for rigid links (e.g., connection to the deck or pier cap). Typically a short rectangle; a value must be provided.

Moment Release Start [Free/Fixed]: Moment release at the start end of the girder. Use Fixed for continuous connections; Free to release rotation.

Moment Release End [Free/Fixed]: Moment release at the end of the girder.

Mesh Size (Long.): Longitudinal element size used for FE meshing along the girder.

Mesh Size (Vert.): Vertical element size used for FE meshing through the girder depth.

Merge tol.: Tolerance used to merge coincident nodes between the girder and neighboring elements.

# of Result Extraction St.: Number of stations along the girder at which FE analysis results are extracted for reporting and code checks.

Quantities

Min Section Area: Minimum cross-section area along the girder (Read-only).

Max Section Area: Maximum cross-section area along the girder (Read-only).

Total Surface Area: Total lateral surface area of the girder (Read-only).

Min Cross Section Perimeter: Minimum cross-section perimeter along the girder (Read-only).

Max Cross Section Perimeter: Maximum cross-section perimeter along the girder (Read-only).

Min Length Path: Minimum path length between start and end of the girder (Read-only).

Length @COG Path: Path length computed along the center of gravity of the girder (Read-only).

Max Length Path: Maximum path length between start and end of the girder (Read-only).

Rebar Density(per cubic yard): User-defined assumed rebar density used to compute rebar weight from the girder volume.

Rebar Weight: Rebar weight computed as volume times rebar density (Read-only).

Volume: Total girder volume (Read-only).

Weight: Total girder weight computed from volume and material density (Read-only).

Section: Section name read from the first Start-End row (Read-only).

Material: Material name read from the first Start-End row (Read-only).

Referencing Objects

Temporary Supports: List of Temporary Support objects that support this girder during construction.

Bracing Objects: List of bracing or diaphragm objects that connect this girder to its neighbors.