# Steel Tub Girder Bridge Design Reports

## Access the Steel Tub Girder Training Example

{% hint style="info" %}
Follow the steps below to open the **Steel Tub Girder Training Example**.
{% endhint %}

1. Log in to your account and locate **Project** in the top-right corner.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230703-094719.png?api=v2)
2. Click **Project**, then click **NEW** in the top-left corner.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230703-094913.png?api=v2)
3. Under **Example Project**, click **New Project** within **Steel Tub-Girder Training Example**.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230703-141313.png?api=v2)

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-064040.png?api=v2)
4. Provide a name for your project and open the example.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-064222.png?api=v2)

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230712-132852.png?api=v2)

![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230703-095905.png?api=v2)

{% hint style="warning" %}
The initial download of the library components **takes approximately 2 minutes 30 seconds**. Subsequent openings of the same project are noticeably faster because OpenBrIM library objects are cached in your browser; loading then **takes less than 2–3 seconds**.
{% endhint %}

## View Design Reports of the Steel Tub Girder Training Example

{% hint style="info" %}
Follow the steps below to run the steel tub-girder code-check reports.
{% endhint %}

The Steel Tub-Girder Workflow supports the following code-check reports:

* Steel Tub-Girder Code Check
* Internal Cross-Frame Code Check
* Field Splice Code Check
* Pier Cap Code Check
* Pier Column Code Check
* Pier Footing Code Check
* Pile Capacity Code Check

1. Make sure the **FEM** button in the top-middle of the screen is active — the **Analysis** button only appears when **FEM** is on.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230712-134902.png?api=v2)

   <div data-gb-custom-block data-tag="hint" data-style="warning" class="hint hint-warning"><p>The <strong>Analysis</strong> button typically <strong>takes around 15–20 seconds</strong> to appear.</p></div>
2. When the **Analysis** button appears in the top-left, the FE model has been compiled and is ready to run.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230712-134554.png?api=v2)

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230712-134619.png?api=v2)
3. Click **Analysis** to run the finite element analysis of the steel tub-girder bridge.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230712-135427.png?api=v2)

   <div data-gb-custom-block data-tag="hint" data-style="warning" class="hint hint-warning"><p>Analysis for this project typically <strong>takes around 3.5 minutes</strong> to complete.</p></div>
4. When the analysis finishes, click **Close** to exit the analysis interface.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230703-144130.png?api=v2)
5. Click **Design** to compute the parametric design parameters and collect the analysis results needed for the reports. *Track progress in the top-middle of the screen during the design run.*

   <div data-gb-custom-block data-tag="hint" data-style="warning" class="hint hint-warning"><p>Keep the design tab visible until the run finishes — hiding or minimizing the page pauses result collection.</p></div>

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230703-144426.png?api=v2)

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-063148.png?api=v2)

   <div data-gb-custom-block data-tag="hint" data-style="warning" class="hint hint-warning"><p>The design run for this project generally <strong>takes approximately 9 minutes</strong> to complete.</p></div>
6. When the design run finishes, click **OK** to start viewing the reports.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-063725.png?api=v2)
7. Click **Report** and **Detailed Report** in succession to display the available reports.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-065303.png?api=v2)
8. **Detailed Report** opens a range of design outputs — quantity reports, camber diagrams, superstructure analysis at 10-foot intervals, code-check reports for individual members, and load-rating reports.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230712-145736.png?api=v2)

{% hint style="success" %}
The common steps before investigating individual design reports are now complete.
{% endhint %}

## Steel Tub-Girder Code Check Report

{% hint style="info" %}
Follow the steps below to access the steel tub-girder code-check reports.
{% endhint %}

1. The summary report lists each girder's code-check station and limit state along with the corresponding D/C ratio and Pass/Fail status.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-072447.png?api=v2)
2. Click the **Detailed Report** icon to open the detailed report.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-072753.png?api=v2)

See [Quick Tips — Exploring Design Variables in Depth](#quick-tips-exploring-design-variables-in-depth) below.

## Internal Cross-Frame Code Check Report

{% hint style="info" %}
Follow the steps below to access the internal cross-frame code-check reports.
{% endhint %}

1. The summary report shows the code-check values for each chord of the cross frame and the gusset-plate bolted-connection checks.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-073031.png?api=v2)
2. Click the **Detailed Report** icon (marked in red) for axial-force member checks.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-073200.png?api=v2)
3. Click the **Detailed Report** icon (marked in blue) for bolted gusset-plate checks.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-073319.png?api=v2)

See [Quick Tips — Exploring Design Variables in Depth](#quick-tips-exploring-design-variables-in-depth) below.

## Field Splice Code Check Report

{% hint style="info" %}
Follow the steps below to access the field-splice code-check reports.
{% endhint %}

1. The summary report shows the D/C ratio for splice plates and bolts at each splice for the strength and service limit states.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-074258.png?api=v2)
2. Click the **Detailed Report** icon to open the detailed report.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-074354.png?api=v2)

See [Quick Tips — Exploring Design Variables in Depth](#quick-tips-exploring-design-variables-in-depth) below.

## Pier Cap Code Check Report

{% hint style="info" %}
Follow the steps below to access the pier-cap code-check reports.
{% endhint %}

1. The summary report runs pier-cap code checks against the AASHTO design template (marked in red).

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-074607.png?api=v2)
2. Click the **Detailed Report** icon (marked in red) for AASHTO checks (flexure, shear, torsion, fatigue, reinforcement limits).

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-074848.png?api=v2)

See [Quick Tips — Exploring Design Variables in Depth](#quick-tips-exploring-design-variables-in-depth) below.

## Pier Column Code Check Report

{% hint style="info" %}
Follow the steps below to access the pier-column code-check reports.
{% endhint %}

1. The summary report shows pier-column results as D/C ratios or Pass/Fail.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-075031.png?api=v2)
2. Click the **Detailed Report** icon to open the detailed report (axial-moment interaction, axial compression, shear, torsion, reinforcement limits).

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-075228.png?api=v2)

See [Quick Tips — Exploring Design Variables in Depth](#quick-tips-exploring-design-variables-in-depth) below.

## Pier Footing Code Check Report

{% hint style="info" %}
Follow the steps below to access the pier-footing code-check reports.
{% endhint %}

1. The summary report shows D/C values and Pass/Fail status for flexure, one-way shear, two-way shear, and reinforcement limits.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-075414.png?api=v2)
2. Click the **Detailed Report** icon to open the detailed pier-footing code-check report.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-075454.png?api=v2)

See [Quick Tips — Exploring Design Variables in Depth](#quick-tips-exploring-design-variables-in-depth) below.

## Pile Capacity Code Check Report

{% hint style="info" %}
Follow the steps below to access the pile-capacity code-check reports.
{% endhint %}

1. The summary report shows the maximum D/C value against the specified pile capacity.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-075554.png?api=v2)
2. Click the **Detailed Report** icon to open the detailed report — the most critical results plus all results across limit states.

   ![](https://openbrim.atlassian.net/wiki/download/attachments/2231500849/image-20230704-075638.png?api=v2)

See [Quick Tips — Exploring Design Variables in Depth](#quick-tips-exploring-design-variables-in-depth) below.

## Quick Tips: Exploring Design Variables in Depth

{% hint style="info" %}
**Tip 1 — Search by keyword**

To quickly find a specific design parameter, press `CTRL+F` and type the keyword.

<img src="https://openbrim.atlassian.net/wiki/download/attachments/2236153881/image-20230707-113435-20230707-123128.png?api=v2" alt="" data-size="original"><img src="https://openbrim.atlassian.net/wiki/download/attachments/2236153881/image-20230707-113727-20230707-123149.png?api=v2" alt="" data-size="original">

**Tip 2 — Inspect any design parameter**

To understand a parameter's annotation, computation, and underlying formula:

i) Hover over the parameter to see its annotation and additional details.

ii) Click the parameter to reveal the formula or expression behind it.

iii) The detailed report itself usually includes the computation and inputs in the surrounding narrative.

<img src="https://openbrim.atlassian.net/wiki/download/attachments/2236153881/image-20230707-114114-20230707-123806.png?api=v2" alt="" data-size="original"><img src="https://openbrim.atlassian.net/wiki/download/attachments/2236153881/image-20230707-115033-20230707-123835.png?api=v2" alt="" data-size="original"><img src="https://openbrim.atlassian.net/wiki/download/attachments/2236153881/image-20230707-115258-20230707-123902.png?api=v2" alt="" data-size="original">
{% endhint %}


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