Sections

This section defines the cross-sectional properties for girders, columns, caps, shafts, and barriers. Sections can be imported from the library or created manually.

Navigation: Properties > Sections

For detailed parameter explanations, see the Sections Reference.

Part 1: Adding Sections to the Project

Step 1: Navigate to Sections

Navigate to Properties > Sections in the tree view.

Navigation

Step 2: Import Girder Section

Click the three-dots icon on the first cell under Name and select Import Section.

Select OpenBrIM Bridge Objects > Precast I Girder Sections > AASHTO I BEAMS > AASHTO_TYPE_III_BEAM and assign material Fc_6ksi.

Import Girder

Step 3: Import Circular Sections

Import circular sections for shafts and columns:

Section Name	Radius	Material
Circle_exist_shaft_EB	18 in	Fc_4ksi
Circle_exist_shaft_Pier	24 in	Fc_4ksi
Circle_exist_column	18 in	Fc_5_1/2ksi

Circle Import

Circle Parameters

Step 4: Import Rectangular Sections

Import rectangular sections for caps:

Section Name	Width	Depth	Material
Rectangle_exist_EBcap	44 in	40 in	Fc_5_1/2ksi
PierCap_exist	48 in	40 in	Fc_5_1/2ksi

Rectangular Sections

Step 5: Import Barrier Section

Select OpenBrIM Bridge Objects > Barrier Sections > General > SingleSlopeRight.

Parameter	Value
Section Name	Exist_Barrier_sw
Top Width	10 in
Bottom Width	18 in
Depth	32 in
Material	Fc_3_2ksi_NoStiffness

Barrier Section

Barrier Parameters

Step 6: Create Rigid Section

Add a new row and define a RigidSection for rigid link connections.

Rigid Section

After completing Part 1, your section definitions should match the view shown below.

Completed Sections

Part 2: Adding Rebars and Strands to Sections

This part defines the reinforcement details for each section.

AASHTO_TYPE_III_BEAM

Click the three-dots icon on the AASHTO_TYPE_III_BEAM row to open the Section Editor.

Section Editor

Top Rebar: Click the + icon and select Rebar. Configure:

• Profile: ASTMA615No8 | Material: A615_60 | Reference Edge: Top

• Distance to Outer Surface: 2 in | Spacing: 4 in | Count: 4 rebars

Top Rebar

Bottom Rebar:

• Profile: ASTMA615No8 | Material: A615_60 | Reference Edge: Bottom

• Distance to Outer Surface: 2 in | Spacing: 2 in | Count: 8 rebars

Bottom Rebar

Prestressing Tendons: Click the + icon and select Tendon.

Row	Dist. to Ref Edge	Outer Spacing	Inner Spacing	Strand Count	Tendons/Row
1	4 in	3 in	4 in	1	7
2	6 in	2.5 in	2.5 in	1	6
3	8 in	3 in	3 in	1	3

All tendons use: Material: A416_270low_relaxation | Strand: Grade270_3_8_No9

Tendon Setup

Completed Tendons

Circle_exist_column

Open the Section Editor for Circle_exist_column.

Column Section

Navigate to the Circular Layout tab:

• Profile: ASTMA615No11 | Material: A615_60

• Radius: 14 in | Count: 20 rebars

Circular Rebar

Completed Column

Rectangle_exist_EBcap

Open the Section Editor for Rectangle_exist_EBcap.

EB Cap Section

Use the Draw Rebar Points tab to define rebar at top, middle, and bottom:

Location	Profile	Count
Top	ASTMA615No9	4
Middle	ASTMA615No6	2x2
Bottom	ASTMA615No9	4

Draw Rebar

PierCap_exist

Open the Section Editor for PierCap_exist.

Pier Cap Section

Use the Draw Rebar Points tab:

Location	Profile	Count
Top	ASTMA615No11	9
Middle	ASTMA615No6	5x2
Bottom	ASTMA615No11	5

Pier Cap Rebar

Completed Pier Cap

Verification

After completing all steps, verify that all sections have the correct reinforcement definitions by opening each section in the Section Editor.