# Pile

This section defines the pile (drilled shaft) properties, including geometry, location offsets, and FEA boundary conditions.

{% hint style="info" %}
**Navigation:** Substructure > Pile
{% endhint %}

## Steps

### Step 1: Navigate to Pile

Navigate to **Substructure > Pile** in the tree view.

![Navigation](https://openbrim.atlassian.net/wiki/download/attachments/2235727946/image-20230724-074753.png?api=v2)

![Pile Panel](https://openbrim.atlassian.net/wiki/download/attachments/2235727946/image-20230724-075016.png?api=v2)

### Step 2: Assign Substructure

Click the **three-dots icon** on the **Substructure** cell and select or pick **EndBent1**. Enter the name as **Pile1**.

### Step 3: Define Section Data

Click the **three-dots icon** on the **Section Data** cell and select **Edit**.

Enter the section data for Pile1:

| Parameter                        | Value                    |
| -------------------------------- | ------------------------ |
| Section Length (Starts from Top) | 51 ft                    |
| Start Section                    | Circle\_exist\_shaft\_EB |
| End Section                      | Circle\_exist\_shaft\_EB |

![Section Data Editor](https://openbrim.atlassian.net/wiki/download/attachments/2235727946/image-20230724-080517.png?api=v2)

![Section Data Values](https://openbrim.atlassian.net/wiki/download/attachments/2235727946/image-20230724-080938.png?api=v2)

### Step 4: Set Location Offsets

Enter the **Longitudinal Offset** and **Transverse Offset** from the origin. Keep other parameters at default values.

![Offset Values](https://openbrim.atlassian.net/wiki/download/attachments/2235727946/image-20230724-082926.png?api=v2)

### Step 5: Configure FEA Properties

Navigate to the **FEA** tab. Click the **three-dots icon** on **Pile Properties** and select **Edit**.

![FEA Tab](https://openbrim.atlassian.net/wiki/download/attachments/2235727946/image-20230724-083916.png?api=v2)

![Pile Properties Editor](https://openbrim.atlassian.net/wiki/download/attachments/2235727946/image-20230724-084334.png?api=v2)

### Step 6: Set Boundary Conditions

Enter the **Tx/Ty/Tz/Rx/Ry/Rz** properties as shown. These define the soil-structure interaction behavior along the pile length.

### Step 7: Set Pile Capacity

Enter a **Pile Capacity** of **1000 kip** for each pile.

![Pile Capacity](https://openbrim.atlassian.net/wiki/download/attachments/2235727946/image-20230724-084955.png?api=v2)

### Step 8: Create All Piles

Repeat the previous steps to create all piles in the project, including piles for end bents and piers.

![All Piles](https://openbrim.atlassian.net/wiki/download/attachments/2235727946/image-20230724-091409.png?api=v2)

<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, the bridge model geometry is complete. Your pile configuration should match the views shown below.
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![Completed Pile View 1](https://openbrim.atlassian.net/wiki/download/attachments/2235727946/image-20230724-091637.png?api=v2)

![Completed Pile View 2](https://openbrim.atlassian.net/wiki/download/attachments/2235727946/image-20230724-091706.png?api=v2)