Sections

This section defines cross-sectional shapes and reinforcement for substructure components.

Navigation: Properties > Sections

For detailed parameter explanations, see the Sections Reference.

Steps

Step 1: Navigate to Sections

Navigate to Properties > Sections in the tree view.

Sections navigation

Step 2: Import Rectangle Section

Click the three-dot icon and select Import Section. Select OpenBrIM Bridge Objects > Basic Sections > Basic Shapes > Rectangle.

Import rectangle

Step 3: Create Substructure Sections

Create the following rectangular sections:

Section Name	Width (in)	Depth (in)	Material
HammerHeadSec	60	84	Fc_4ksi
HalfHammerHeadSec1	66	54	Fc_4ksi
HalfHammerHeadSec2	66	125	Fc_4ksi
ColSec_P2	72	72	Fc_5ksi
ColSec_P3	204	78	Fc_5ksi
PileSec	24	24	Fc_5ksi

Step 4: Import Steel Sections

Import AISC steel sections:

Section	Library Path	Material
AISCWT6X29	OpenBrIM Bridge Objects > AISC Steel Shape Database > WT Type	A709_50W
AISCL6X6X7/8	OpenBrIM Bridge Objects > AISC Steel Shape Database > L Type	A709_50W

WT section

Step 5: Create Rigid Section

Create a section named RigidSection and assign RigidMaterial.

Rigid section

Step 6: Add Reinforcement to Sections

For each concrete section, open the Section Editor and add reinforcement:

1. Click the three-dots icon on the section row
2. Click the + icon and select Rebar
3. Configure rebar parameters (Profile, Material, Reference Edge, Spacing, etc.)
4. Click Add

Quick Tip: HammerHeadSec Reinforcement

For HammerHeadSec, add reinforcement on all four edges:

• Top: ASTMA615No10, A615_60, 7 bars @ 8" spacing, 2 rows
• Bottom: ASTMA615No10, A615_60, 7 bars @ 8" spacing, multiple rows at different depths
• Left/Right: ASTMA615No10/No8, A615_60, 9 bars @ 6" spacing

HammerHead section

Quick Tip: Column Section Reinforcement

For column sections (ColSec_P2, ColSec_P3), add reinforcement on all four edges using ASTMA615No11 bars with A615_60 material.

Column section

Verification

The completed section definitions are shown below.

Completed sections