Document Information

 

Document Type: FAQ

Product(s): LEAP RCPIER/Substructure

Version(s): All

Original Author: Bentley Technical Support Group - VM

QUESTIONS:

How is the curb-to-curb distance accounted for the Substructure (RC Pier) module in OpenBridge Concrete (LBC) inside OpenBridge Designer? 

If the user has a barrier inside of the coping (outside edge of the bridge), can users specify a different curb distance on one side of the bridge from the other?

In this case, if the user wants to use the auto LL generation, but the distance from the coping to the curb is different on either side of the bridge, are there any suggestions to deal with it?

ANSWERS: 

One place where the user can modify the curb-curb width manually is in the Geometry Tab, where the user needs to click on the Super Structure button, and then, in the dialog box, you can change the curb-to-curb distance manually.

However, the program assumes that the width is being placed symmetrically over the pier and ignores any eccentricity due to different curb widths. This means it assumes the same curb width on both sides.

One suggestion would be to make the program assume the maximum curb-to-curb distance so that it covers all the scenarios and gives maximum reactions, and also if the ser wants to add any other additional reactions on the substructure due to the eccentricity (due to different curb width) then it can be applied manually  For further information on how RC pier does LL Analysis, user can check the theory section of the manual.