# 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.


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