> 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/bridge-geometry-ex1-sig/girder-layout-ex1-sig.md).

# Girder Layout

{% hint style="info" %}
**Navigation:** Bridge Geometry > Girder Layout

For detailed parameter explanations, see the [Girder Layout Reference](https://docs.openbrim.org/templates/steel-i-girder-bridge-workflow/bridge-geometry-sig/girder-layout-sig).
{% endhint %}

**Step 1:** Click **three-dots** on the first cell of the **Supports** and **pick** the insertion points **IP1**, **IP5**, **IP9**, **IP13**

![image-20240724-112956.png](https://openbrim.atlassian.net/wiki/download/attachments/2101641536/image-20240724-112956.png?api=v2)

![image-20250112-115124.png](https://openbrim.atlassian.net/wiki/download/attachments/2101641536/image-20250112-115124.png?api=v2)

**Step 2:** Click **Done** after the selection of the insertion points

![](https://openbrim.atlassian.net/wiki/download/attachments/2101641536/image-20231003-111810.png?api=v2)

**Step 3:** Keep **Horizontal and Vertical Geometry** as default.

![image-20250112-115214.png](https://openbrim.atlassian.net/wiki/download/attachments/2101641536/image-20250112-115214.png?api=v2)

**Step 4:** Keep the parameters in **3D Settings Tab: Curve Refinement, Initial Cantilever Length of Girder** and **End Cantilever Length of Girder** as default.

![image-20240724-113418.png](https://openbrim.atlassian.net/wiki/download/attachments/2101641536/image-20240724-113418.png?api=v2)

**Step 5:** Keep the girder layout name as default.

**Step 6:** When the steps are completed, the shared screenshot displayed below should be visible in the 3D view of OpenBrIM.

![image-20250112-115238.png](https://openbrim.atlassian.net/wiki/download/attachments/2101641536/image-20250112-115238.png?api=v2)

**Step 7:** Proceed to the next step to verify the model.

{% hint style="success" %}
The completed girder layouts 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 %}

<details>

<summary><strong>Quick Tip:</strong> Learn how to show Model</summary>

Click on the arrow button above the Analysis button located in the upper-left corner of the OpenBrIM screen.

![](https://openbrim.atlassian.net/wiki/download/attachments/2278031376/image-20230920-135407.png?api=v2)

Click on the Model button on the screen that opens up.

![](https://openbrim.atlassian.net/wiki/download/attachments/2278031376/image-20230920-135445.png?api=v2)

![image-20250112-114433.png](https://openbrim.atlassian.net/wiki/download/attachments/2101641536/image-20250112-114433.png?api=v2)

![image-20250112-114259.png](https://openbrim.atlassian.net/wiki/download/attachments/2101641536/image-20250112-114259.png?api=v2)

![image-20250112-114333.png](https://openbrim.atlassian.net/wiki/download/attachments/2101641536/image-20250112-114333.png?api=v2)

</details>

{% hint style="success" %}
To view the entire procedure explained on this page, please watch the recorded Video below.
{% endhint %}

{% embed url="<https://openbrim.atlassian.net/wiki/download/attachments/2101641536/Girder%20Layout.mp4?api=v2>" %}
Girder Layout
{% endembed %}


---

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