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(blue star) Follow the below steps to edit the plate girder dimensions.

1

Click three-dots icon (blue star) on the cell and Edit (spreadsheet).

2

Define the station-dimension relationship on the spreadsheet.

3

Top Flange thickness, web depth and thickness, bottom flange width and thickness, haunch thickness, and additional haunch width parameters can be defined similarly to top flange width.

4

Click three-dots icon (blue star) on top flange & web & bottom flange material cells and import a Material.

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5

You can edit the FE mesh settings of girders from FEA Settings tab.

6

The girder FE model will be automatically generated by the OpenBrIM based on the parametric relation between the 3D and FEM in the library component. The girder section is represented using FeLine elements for flanges and FeSurface elements for the web.

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titleQuick Tips

3D view of girders:

FEM view of girders:

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Cross-Frames

Add K Top type cross frames to start and end support locations and add X type cross frames based on the spacing data.

(blue star) Follow the below steps to create cross frames.

1

Pick 2 Girders that the cross frame will be placed between.

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2

Enter the Station of the cross frame.

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3

Go to Sections tab.

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4

Import AISCL8X8X3/4 and assign it to Top & Bottom & Diagonal Chord Sections.

5

Go to Gusset Plate tab and edit the gusset plate offset values for top, bottom and diagonal plates.

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6

Go to Stiffener tab

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Edit the vertical stiffener thickness as 0.75 and vertical stiffener width as 7 in.

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Go to Geometry tab.

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Edit the offset values for top chord, diagonals, and bottom chord.

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Perform the same steps for X type cross-frames.

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titleQuick Tip

1. The 3D plan view after entering the cross-frames:

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2. The FE plan view after entering the cross-frames:

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Deck

You need to define at least 2 deck cross-sections along the deck.

(blue star) Follow the below steps to define deck cross-sections.

1

Pick 1st and 2nd Support Lines with no longitudinal offsets

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2

Pick 1st and 2nd Support Lines with no longitudinal offsets

3

Go to Deck Cross Section tab

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4

Pick the Girders for haunch locations

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Enter the deck dimensions

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The deck cross sections at the start and end should look like the below.

(blue star) Follow the below steps to define concrete deck.

1

Go to Concrete Deck on tree view.

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2

Pick Cross-sections graphically

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3

Import deck Material and assign it

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titleQuick Tips

1. You can view the previously imported materials in Properties->Materials on the tree view

2. Superstructure 3D view of the bridge:

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3. Superstructure FEM view of the bridge:

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Splices

(blue star) Follow the below steps to define the bolt properties of the web and flange splice bolts.

1

Go to Bolt Property on tree view

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2

Create 2 rows (1 for flange bolts, 1 for web bolts).

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3

Enter the Geometric Properties and Mechanical Properties as given in the input sheet.

(blue star) Follow the below steps to add the splice plates.

1

Go to Bolted Field Splice

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2

Pick or set the Girder

3

Enter the Station and Gap between girders

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4

Go to Web Splice tab to edit the plate and bolt inputs

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Go to Top Flange Splice tab to edit the plate and bolt inputs

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Go to Bottom Flange Splice tab to edit the plate and bolt inputs

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Go to Bolts tab and select Web Bolt & Flange Bolt Properties

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titleQuick Tips

1. Enable/disable the display of splice bolts by editing the Show Bolts parameter.

2. Activate the Detailing from (blue star) .

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3. It is recommended to disable Detailing when there is no need to display the details, such as bolt and bolt holes, to get a better performance experience.

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Shear Studs

(blue star) Follow the below steps to add the shear studs.

1

Go to Shear Stud on the tree view

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2

Set/Pick a Girder

3

Enter Start & End Stations where the shear studs will be placed.

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4

Go to Shear Stud tab

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5

Edit dimension and spacing/count data

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titleQuick Tips

1. You can enable/disable display the detailing of shear studs by editing Show Bolts as in splice spreadsheet.

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Barriers

(blue star) Follow the below steps to add F shape barriers to both sides of the bridge.

1

Go to F Shape Barrier under Superstructure Attachments on tree view

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2

Click three-dots icon (blue star) on Deck and select a deck

3

Select the Orientation of the barriers on both sides

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4

Set the concrete Material of the barrier

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5

Enter Start Transverse Offset and End Transverse Offset as -243 in for left orientation and 243 in for right orientation.

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titleQuick Tips

1. 3D view of the barriers on the bridge:

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2. FEM view of the barriers on the bridge:

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3. Barriers are included in the FE model to distribute the Wind Forces.

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Roadway

OpenBrIM uses roadway data while performing influence surface based live load analysis. Follow the below steps to add roadway to the project.

(blue star) Follow the below steps to define roadway to the project.

1

Go to Roadway on the tree view.

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2

Select Bridge.

3

Click three-dots icon (blue star) on Roadway Dimensions and click Edit.

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4

Enter start & end stations and left & right widths as given in the input sheet.

5

Keep the lane dimensions and asphalt thickness on the Roadway tab as default.

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titleQuick Tips

1. The roadway 3D view is given below:

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