> 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-tub-girder-bridge-ex1-stg/substructure-ex1-stg/pier-ex1-stg/pier-caps-ex1-stg.md).
# Pier Caps
This section defines the hammerhead pier cap geometry and configuration.
{% hint style="info" %}
**Navigation:** Substructure > Pier > Pier Caps
For detailed parameter explanations, see the [Pier Caps Reference](https://docs.openbrim.org/templates/steel-tub-girder-bridge-workflow/substructure-stg/pier-stg/pier-cap-stg).
{% endhint %}
## Steps
### Step 1: Navigate to Pier Caps
Navigate to **Pier > Pier Cap** in the tree view.
### Step 2: Assign Support Locations
Click the **three-dot icon** on the **Location** cell and select **Pier2** and **Pier3** support lines.
### Step 3: Configure Section Type
The **Prismatic** section type will be used for all pier caps.
### Step 4: Edit Prismatic Section
Click the **three-dot icon** on the **Prismatic Section** cell and select **Edit**.
### Step 5: Define PC1 Sections
For **PC1** (1st Pier Cap):
1. Click the **three-dot icon** on the **Start Section** cell and select **HammerHeadSec**
2. Click the **three-dot icon** on the **End Section** cell and select **HammerHeadSec**
3. Enter **Section Length** as **63** ft along Y-Y (starting from right)
### Step 6: Define PC2 Sections
For **PC2** (2nd Pier Cap):
1. Repeat steps 4-5 using the following sections:
* First segment: **HalfHammerHeadSec2** (Start and End)
* Second segment: **HalfHammerHeadSec2** (Start), **HalfHammerHeadSec1** (End)
2. Enter **Section Lengths** as **17** ft and **20** ft along Y-Y (starting from right)
### Step 7: Set Slope Options
Navigate back to the pier cap table and set **Slope Option** as **Alignment**.
### Step 8: Configure Elevations and Offsets
Enter the following parameters:
| Parameter | Description |
| ----------------------------------------- | ------------------------------ |
| Top Elevation Offset from Alignment \[ft] | Vertical offset from alignment |
| Transverse Offset \[ft] | Lateral offset from PGL |
### Step 9: Assign Rigid Section
Navigate to the **FEM** tab and select **RigidSection** for the Rigid Section column.
Quick Tip: Transverse Offset Direction
Offset values use PGL (Project Geometry Line) as the reference point.
## Verification
{% hint style="success" %}
The completed pier caps are shown below.
{% endhint %}
---
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