# Slab Elevation Table \[SIG]

For each girder a table for CL of Girdres elevation along spans length can be generted. For the Slab Elevation Table to be generted users can specify the parameters below.

## General

**Bridge:** This parameter can be used to specify the bridge model for which the slab elevation table will be generated.

**Use CL of Bearings/Piers \[Bearings/Piers/Girder-Pier Intersection]:** Selects the reference used to locate span boundaries along the girder. Bearings uses bearing centerlines; Piers uses pier centerlines; Girder-Pier Intersection uses the actual intersection of the girder with each pier support.

**Number of Segments per Span:** Number of sub-segments per span used to discretize the girder line; more segments produce more table rows and smoother elevation output.

**Additional Girder Stations:** Optional list of additional girder stations (along the PGL) to include in the table on top of the automatic segment stations.

**Ignored Insertion Points for Span Positioning:** Insertion points that should be excluded when the algorithm determines span boundaries (useful when a temporary or auxiliary insertion point would otherwise split a span).

In addition to each 0.1L girder, a certain point, which can be determined in terms of transverse location and stations, can be presented in the slab elevation table.

## Additional Points Table

**Add. Point Trasverse Loc.:** Transverse location of additional user-defined reporting points on the slab (offset from PGL).

**Add. Point Stations:** Station(s) along the longitudinal direction that define the additional reporting points.

## Settings

**Number of Decimal Points:** This input allows users to define the number of decimal points to be displayed.

{% hint style="info" %}
The **Slab Elevation Table** includes:

* The location of each displayed result station with respect to the PGL (X-axis station), and
* Elevations of all the girders with respect to the alignment, where negative values indicate a downward direction and positive values indicate an upward direction. ![image-20250620-124405.png](https://openbrim.atlassian.net/wiki/download/attachments/2234810394/image-20250620-124405.png?api=v2)
  {% endhint %}


---

# 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/slab-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.