# Wind Load

This section defines wind loads on the structure according to AASHTO specifications.

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**Navigation:** Loading > Loads > Wind Load
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## Steps

### Step 1: Navigate to Wind Load AASHTO

Navigate to **Loads > Wind Load > Wind Load AASHTO** in the tree view.

![Wind Load navigation](https://openbrim.atlassian.net/wiki/download/attachments/2169962497/image-20230224-094418.png?api=v2)

### Step 2: Select Construction Stage

Click the **three-dot icon** on the **Stage** cell and select **WSStage**.

![Stage selection](https://openbrim.atlassian.net/wiki/download/attachments/2169962497/image-20230224-094443.png?api=v2)

### Step 3: Set Wind Direction

Set **Right to Left** as the Wind Direction.

![Wind direction](https://openbrim.atlassian.net/wiki/download/attachments/2169962497/image-20230224-104310.png?api=v2)

### Step 4: Define Structural Objects

Click the **three-dot icon** on the **Structural Objects And Pressure Parameters** cell and select **Edit**.

![Edit parameters](https://openbrim.atlassian.net/wiki/download/attachments/2169962497/image-20230224-105256.png?api=v2)

![Structural objects](https://openbrim.atlassian.net/wiki/download/attachments/2169962497/image-20230224-105843.png?api=v2)

### Step 5: Pick Applied Elements

Click the **three-dot icon** on the **Applied Elements** cell and pick all elements affected by wind from the 3D View.

Define parameters for each element:

* Structural Height From Ground Line \[ft]
* Gust Effect Factor
* Drag Coefficient

![Element parameters](https://openbrim.atlassian.net/wiki/download/attachments/2169962497/image-20230224-110554.png?api=v2)

### Step 6: Configure Wind Parameters

Navigate back to the **Params** tab.

Enter Design Wind Speed (mph) and Surface Roughness parameters according to AASHTO specifications.

![Wind parameters](https://openbrim.atlassian.net/wiki/download/attachments/2169962497/image-20230224-111338.png?api=v2)

## Verification

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Wind load should be properly defined for all exposed structural elements.
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