> 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/concrete-bridge-examples/example-prestressed-i-girder-concrete-bridge-ex1-pig/superstructure-attachments-ex1-pig/f-shape-barrier-ex1-pig.md).

# F Shape Barrier

This section defines F-shape barriers on the right side of each deck span.

{% hint style="info" %}
**Navigation:** Superstructure Attachments > F Shape Barrier

For detailed parameter explanations, see the [F Shape Barrier Reference](https://docs.openbrim.org/templates/precast-i-girder-bridge-workflow/superstructure-attachments-pig/barrier-pig).
{% endhint %}

## Steps

### Step 1: Navigate to F Shape Barrier

Navigate to **Superstructure Attachments > F Shape Barrier** in the tree view.

![Navigation](https://openbrim.atlassian.net/wiki/download/attachments/2235662404/image-20230714-092438.png?api=v2)

### Step 2: Select Deck

Click the **three-dots icon** on the **Deck** cell and select **Span1**.

### Step 3: Set Barrier Orientation

Select the orientation for the right side of the deck.

![Orientation](https://openbrim.atlassian.net/wiki/download/attachments/2235662404/image-20230714-092824.png?api=v2)

### Step 4: Set Material

Set the concrete **Material** to **Fc\_3\_2ksi\_NoStiffness**.

![Material](https://openbrim.atlassian.net/wiki/download/attachments/2235662404/image-20230714-093148.png?api=v2)

### Step 5: Set Transverse Location

Set **Start Transverse Location** and **End Transverse Location** to **Right**.

![Transverse Location](https://openbrim.atlassian.net/wiki/download/attachments/2235662404/image-20230714-095153.png?api=v2)

### Step 6: Enter Dimensions

Navigate to the **Dimension** tab and enter the barrier dimension parameters.

![Dimension Tab](https://openbrim.atlassian.net/wiki/download/attachments/2235662404/image-20230714-112205.png?api=v2)

### Step 7: Create Barriers for All Spans

Repeat the previous steps to create F-shape barriers for Span2 and Span3. Enter names for each barrier.

![All F Shape Barriers](https://openbrim.atlassian.net/wiki/download/attachments/2235662404/image-20230714-112615.png?api=v2)

<details>

<summary><strong>Quick Tip:</strong> Barriers in FE Model</summary>

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

</details>

<details>

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

Offset values use the Profile Grade Line (PGL) as the reference point.

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

</details>

## Verification

{% hint style="success" %}
After completing these steps, your F-shape barrier configuration should match the views shown below.
{% endhint %}

![Completed F Shape Barrier View 1](https://openbrim.atlassian.net/wiki/download/attachments/2235662404/image-20230714-114816.png?api=v2)

![Completed F Shape Barrier View 2](https://openbrim.atlassian.net/wiki/download/attachments/2235662404/image-20230714-115000.png?api=v2)


---

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