Materials

This section defines material properties for concrete, reinforcement steel, structural steel, and prestressing steel.

Navigation: Properties > Materials

For detailed parameter explanations, see the Materials Reference.

Steps

Step 1: Navigate to Materials

Navigate to Properties > Materials in the tree view.

Navigation

Step 2: Import Steel Materials

Click the three-dots icon on the first cell of Name and select Import Material.

Import the following steel materials from OpenBrIM Library:

Material Path	Material Name
OpenBrIM Bridge Objects > Steel Material Database (US) > Reinforcement Steel	A615_60
OpenBrIM Bridge Objects > Steel Material Database (US) > Structural Steel	A709_50W

Import Steel

Select Material

Material Selected

Step 3: Import Concrete Materials

Import the following concrete materials:

Material Path	Material Name
OpenBrIM Bridge Objects > Concrete Material Database (US) > US AASHTO	Fc_3_1/2ksi
OpenBrIM Bridge Objects > Concrete Material Database (US) > US AASHTO	Fc_4ksi
OpenBrIM Bridge Objects > Concrete Material Database (US) > US AASHTO	Fc_5ksi
OpenBrIM Bridge Objects > Concrete Material Database (US) > US AASHTO	Fc_6ksi

Step 4: Import Prestressing Steel

Import the prestressing steel material:

Material Path	Material Name
OpenBrIM Bridge Objects > Steel Material Database (US) > Prestressing Steel	Grade270_lowrelaxation

Quick Tip: Stress-Strain Curves

Each material type comes with a default stress-strain curve for section capacity calculations. To view or customize:

1. Click the three-dots icon on A615_60 and select Edit
2. Click on Stress/Strain Model dropdown to modify parameters
3. The Stress/Strain Curve updates automatically based on the selected model

Stress-Strain Model

Curve Options

Step 5: Create Rigid Material

Add a new row and enter RigidMaterial as the name.

Set the unit weight of rigid materials to 0 as a general practice.

Rigid Material

Verification

After completing these steps, the material definitions should appear as shown below.

Completed Materials