# F Shape Barrier

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**Navigation:** Superstructure Attachments > F Shape Barrier

For detailed parameter explanations, see the [F Shape Barrier Reference](https://docs.openbrim.org/templates/steel-tub-girder-bridge-workflow/superstructure-attachments-stg/barrier-stg).
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**Step 1:** Navigate to Superstructure Attachments > **F Shape Barrier**

![](https://openbrim.atlassian.net/wiki/download/attachments/2168619060/image-20230221-122346.png?api=v2)

**Step 2:** The F barrier will be defined on both the left and right sides of the Deck object.

Click **three-dots icon** on **Deck** cell and set Deck1 at twice.

**Step 3:** Select the **Orientation** of the barriers on both sides as in the figure.

![](https://openbrim.atlassian.net/wiki/download/attachments/2168619060/image-20230221-123126.png?api=v2)

**Step 4:** Set the concrete **Material** of the barrier to Fc\_4ksi.

![](https://openbrim.atlassian.net/wiki/download/attachments/2168619060/image-20230221-123637.png?api=v2)

**Step 5:** Enter **Start Transverse Offset** and **End Transverse Offset** as in the figure.

![](https://openbrim.atlassian.net/wiki/download/attachments/2168619060/image-20230221-124348.png?api=v2)

**Step 6:** You can make adjustments to the **"Dimensions"** tab if you wish.

![](https://openbrim.atlassian.net/wiki/download/attachments/2168619060/image-20230221-124504.png?api=v2)

**Step 7:** Quick Tip

Barriers are included in the FE model to distribute the Wind Forces.

Also, by assigning a section, you can define a custom shaped barrier.

![](https://openbrim.atlassian.net/wiki/download/attachments/2168619060/image-20230221-125015.png?api=v2)

<details>

<summary><strong>Quick Tip:</strong> Transverse Offset Direction</summary>

Offset values use PGL as the reference point.

</details>

![](https://openbrim.atlassian.net/wiki/download/attachments/2104689432/image-20230216-130246.png?api=v2)

***

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The F Shape Barrier that have been created are illustrated below.
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![](https://openbrim.atlassian.net/wiki/download/attachments/2168619060/image-20230221-125640.png?api=v2)

![](https://openbrim.atlassian.net/wiki/download/attachments/2168619060/image-20230221-125703.png?api=v2)

***

If icon won't appear, collapse page tree menu by clicking on arrow or using shortcut "\[".

| **F Shape Barrier**               |            |
| --------------------------------- | ---------- |
| F Shape Barrier                   | Dimensions |
| \`\`\`                            |            |
| BR1 Deck1 Left Fc\_4ksi -251 -251 |            |
| BR2 Deck1 Right Fc\_4ksi 251 251  |            |
| \`\`\`                            | \`\`\`     |
| BR1 35 20 15 10 0                 |            |
| BR2 35 20 15 10 0                 |            |

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