# Section Analysis
## Section Geometry Definition
{% hint style="info" %}
Follow the steps below to define a section and view its properties in OpenBrIM.
{% endhint %}
1. Log in to your account, click **Project** in the top-right, then click **NEW** in the top-left corner.
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2. Under **Empty Projects**, click **New Project** within **FEA Workflow**.
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{% hint style="info" %}
This example uses the FEA workflow, but the same operations apply in any other workflow.
{% endhint %}
3. Provide a name for your project and open the FEA Workflow project.
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4. Click **Data** at the bottom of the page.
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{% hint style="info" %}
The next steps create an example **rectangular** reinforced concrete section.
{% endhint %}
### Define Materials and Reinforcement
1. Click the **FEA** tab at the top-left of the spreadsheet, then click **Materials** under **Properties** in the tree view.
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2. In the spreadsheet, click the three-dot menu in any cell and choose **Import Material**. Import the concrete material from the appropriate database/category, then repeat for the reinforcing steel material.
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3. Open **Reinforcement** under **Properties**. Click the three-dot menu in any cell and choose **Import Rebar Profile**. Pick the database and category for the desired profile.
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### Build the Section
1. Open **Sections** in the tree view and provide a name for the section you want to define.
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2. Click the three-dot menu in any cell of the section row and open the **Section Editor**.
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3. In the Section Editor, click **Shapes** in the top-left to open the shapes menu, then click the **Template** section.
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4. Pick **Rectangle** from **Basic Shapes** and click **Add** to insert it into the section.
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{% hint style="info" %}
**Quick tip:** You can also import an existing section by clicking the three-dot menu in the section's spreadsheet cell and choosing **Import Section**.
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{% endhint %}
### Add Rebar or Tendons
Once the shape is in place, you can add rebar or tendons inside the Section Editor:
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**Option 1 — by entering parameters.**
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**Option 2 — by drawing rebar points.**
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The completed section appears as shown — three sequential rebar layouts have been added.
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***
## Sectional Analysis
{% hint style="info" %}
With the section, materials, geometry, and rebar defined, follow the steps below to run sectional analyses.
{% endhint %}
1. Click the three-dot menu next to the section name. From here you can run **Flexure Capacity**, **Moment Curvature**, and **Interaction Diagram**.
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2. Click **Flexure Capacity** to compute the flexural capacity of the section.
3. Click **Moment Curvature** to compute the moment-curvature curve.
4. Click **Interaction Diagram** to compute the axial-moment interaction diagram.
***
## Section Properties Computation
{% hint style="info" %}
After running the analyses, follow the steps below to view the computed section properties.
{% endhint %}
1. Click the back arrow in the top-left of the Section Editor to return to the spreadsheet.
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2. The section properties (area, moment of inertia, etc.) appear in the spreadsheet. Click **More Properties** or **Extent** for additional values.
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