Influence Surface [EX1-SIG]

After clicking on ‘Loading> Loads> Inf. Surf Based LL/BR/CE> Influence Surface' in the navigation treeview, follow the steps to define the Influence Surface. You can use the collapsed documentation page below for more information on the explanations of each parameter.

Influence Surface

Influence Surface [SIG]

1

Click three-dots icon on Stage cell and select a Construction Stage as LLStage.

2

As a result of these operations, an issue will appear on the OpenBrIM screen. This does not necessarily mean that any operation was done incorrectly. The issue will be resolved when the roadway is define in the next step.

3

Quick Tip: Learn how to read issues

When encountering the warning as seen in OpenBrIM app, there is a "issue" , it is advised to review the parameters you have provided. This warning suggests that there might be a missing or incorrect parameter in your input. Check inputs to ensure they are accurate and complete.

When a warning is clicked, the reason can be displayed. The warning is expressed in the format of Component Group Name (can be viewed in the treeview) > User Defined Component Name (can be viewed in the spreadsheet name column) > Parameter Name (can be viewed in the spreadsheet column header).

After clicking on 'Superstructure > Connections > Bolted Field Splice' in the tree view, navigate to the Bolt category. Set the Bolt Property input. The issue will be resolved after these steps.

The screenshot demonstrates one example of two Bolted Field Splice components named BFS1 and BFS2 by the user, with parameter names Flange Bolt Property and Web Bolt Property.

4

Click the three-dots icon on the Roadway cell, and then set R1.

5

Keep the Live Load Category, Unit Load Spacing Long. and Unit Load Spacing Trans. as default.

6

Keep the Centrifugal parameters as default.

7

Set name as ISGravity.

8

To model all the influence surface, copy the data below and paste the parameters into the first cell in OpenBrIM spreadsheet. Refer to the quick tip for an easy guide on how to perform the copy operation. After completing the copy, proceed to the next step to verify the model.

Quick Tip: Learn how to Copy inputs to OpenBrIM Copy the desired data with the automatic copy button in the upper left corner. Click on the first cell in and use the Ctrl+V shortcut to paste. If icon won’t appear, collapse page tree menu by clicking on arrow or using shortcut “[”. While pasting large data, it would be handy to turn of Auto-refresh .

Influence Surface

General

ISGravity	LLStage	R1	Gravity	360.0000	72.0000
ISBraking	BRStage	R1	Braking	360.0000	72.0000
ISCentr	CentStage	R1	Centrifugal	360.0000	72.0000

Centrifugal

ISGravity	N/A	N/A
ISBraking	N/A	N/A
ISCentr	51.3000	Other than Fatigue(1.33)

The completed influence surfaces are illustrated below. Please verify that you have the same model on your end by examining each view provided here. For more information on how to perform visual checks, refer to the quick tips.

To view the entire procedure explained on this page, please watch the recorded Video below.

20231017180008.mp4