# Girder Elevation Table \[SIG]

The Girder Elevation Table report documents the flange plate geometry and field splice locations for each girder in the bridge. It consists of a reference elevation drawing and two tables: the Girder Flange Plate table and the Span and Splice Locations table.

## Reference Elevation Drawing

The drawing shows a side elevation of the reference girder with all section change stations, field splice locations, and bearing points labeled. Dimension lines indicate segment lengths along the girder.

![Reference girder elevation drawing showing C, A, and B dimension lines](/files/ZjbUpcE8dQW74wE0zGul)

* **C dimensions** mark the boundaries of each flange plate section change station along the girder length.
* **A dimensions** show the distances between consecutive field splice stations, measured along the girder alignment.
* **B dimensions** show the span lengths between bearing points.

## Girder Flange Plate Table

Each column group **C1, C2, C3, ...** corresponds to one section change station segment along the girder. For each segment, the table lists:

* **Top Flange** — thickness × width of the top flange plate at the mid-station of that segment.
* **Bottom Flange** — thickness × width of the bottom flange plate at the mid-station of that segment.
* **Length** — the length of the segment measured along the girder alignment.

The number of C columns is determined by the parameter with the most section change stations among the six flange and web parameters (top flange width, top flange thickness, web depth, web thickness, bottom flange width, bottom flange thickness). For consistent output across all girders, the section change station counts for each parameter should be equal across all girders in the bridge.

![Girder Flange Plate table showing C columns with top flange, bottom flange, and length for each girder](/files/tXvawPYi35FOdD9ry8Kw)

## Span and Splice Locations Table

* **A columns (A1, A2, ...)** — distances between consecutive field splice stations for each girder, measured along the girder alignment. Each girder uses its own splice station list, so A column lengths may differ across girders in skewed bridges.
* **B columns (B1, B2, ...)** — span lengths between consecutive bearing points, measured along the girder alignment.

## General

**Girders:** Select the girders for which the elevation table will be generated.

## Details

**DimLines Vertical Offset:** Specify the vertical offset distance for dimension lines in the elevation drawing.

**Display Splices Name \[Yes/No]:** Specify whether to display the splice names on the elevation drawing.

**Display Bearing Name \[Yes/No]:** Specify whether to display the bearing names on the elevation drawing.

**Flange Thickness Factor:** Specify a scaling factor for displaying the flange thickness in the elevation drawing.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.openbrim.org/templates/steel-i-girder-bridge-workflow/reports-sig/girder-elevation-table-sig.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.