> For the complete documentation index, see [llms.txt](https://docs.openbrim.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.openbrim.org/examples/steel-bridge-examples/example-steel-i-girder-bridge-ex1-sig/substructure-ex1-sig/foundation-ex1-sig/rectangular-footing-ex1-sig.md).
# Rectangular Footing
{% hint style="info" %}
**Navigation:** Substructure > Foundation > Rectangular Footing
For detailed parameter explanations, see the [Rectangular Footing Reference](https://docs.openbrim.org/templates/steel-i-girder-bridge-workflow/substructure-sig/foundation-sig/rectangular-footing-sig).
{% endhint %}
**Step 1:** Click **three-dots** on the first cell of the **Substructure** and **pick** the pier columns **PierColumn1, PierColumn2, PierColumn3** and **PierColumn4**
**Step 2:** Enter the **Footing Width** as **44.**
**Step 3:** Enter the **Footing Length** as **20.**
**Step 4:** Enter the **Thickness** as **6.**
**Step 5:** Keep the **Longitudinal Offset** and **Transverse Offset** as default.
If you want to examine the working logic of the Transverse Offset and Longitudinal Offset parameters in the Foundation object, you can refer to the Quick Tip below.
Quick Tip: Transverse & Longitudinal Offset
**Longitudinal Offset** = It offsets the foundation along the alignment.
**Transverse Offset** = It offsets the foundation on the y-axis perpendicular to the alignment.
**Rotation** = It rotates the XY plane.
-20221025-115814.png?api=v2)
**Step 6:** Click the **three-dots icon** on the **Material** cell, and then select **Fc\_4ksi**.
If you have reached this stage and you don't have a material to select, and if you want to use the **Import Button**, you can refer to the **Quick Tip**.
Quick Tip: Learn how to import materials
If there is no material to be set, follow the steps below:
\- Click the three dots on the cell and select Import Material.
\- In the opened window, choose the material.\
\- Click the Import button.
**Step 7:** Keep the **Rotation** as default.
**Step 8:** Keep the **FEM parameters** as default.
**Step 9:** Set name as **Footing1**.
**Step 10:** When the steps are completed, the shared screenshot displayed in the adjacent cell should be visible in the 3D view of OpenBrIM.
{% hint style="success" %}
The completed rectangular foundation are illustrated below. Please verify that you have the same model on your end by examining each view provided here. For more information on how to perform visual checks, refer to the quick tips.
{% endhint %}
Quick Tip: Learn how to show Model
Click on the arrow button above the Analysis button located in the upper-left corner of the OpenBrIM screen.
Click on the Model button on the screen that opens up.
Quick Tip: Learn how to show FEA
Click on the arrow button above the Analysis button located in the upper-left corner of the OpenBrIM screen.
Click on the FEA button on the screen that opens up.
{% hint style="success" %}
To view the entire procedure explained on this page, please watch the recorded Video below.
{% endhint %}
{% embed url="" %}
REctangular Footing
{% endembed %}
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## 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, and the optional `goal` query parameter:
```
GET https://docs.openbrim.org/examples/steel-bridge-examples/example-steel-i-girder-bridge-ex1-sig/substructure-ex1-sig/foundation-ex1-sig/rectangular-footing-ex1-sig.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
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.