What’s New in LEAP Bridge Concrete CONNECT Edition V17 U1 Maintenance Release (December 20, 2017)

We recently identified a few issues in the current market version 17.01.00.36 of LEAP Bridge Concrete. The details of those issues are as shown below. We have fixed the issues, and created a maintenance release (v17.01.01.11).

  • Precast/Prestressed Girder module (formerly called CONSPAN)
    • Deck offset to alignment was incorrectly calculated for the option “Flared Girder” with the span type as Multi-Span (Continuous) when skew angle was not zero.
    • User defined dead load distribution factors did not work correctly for US LFD code.
  • Substructure module (formerly called RC-PIER)
    • Longitudinal moment due to horizontal soil pressure was incorrectly calculated in pile cap abutment for the option “Piles integral with cap”.
    • Analytical results of pile or column were incorrect under for pile cap abutment (with the option “Piles integral with cap” selected) or for pier when user defined checking points were activated in structural models.
    • Factored moments in shear and torsion check in the detailed design report were incorrectly switched between left side and right side of certain points of interest.
    • Wind load on live load was incorrectly generated for US LRFD code with Florida DOT SDG for wind load selected.
    • Wind load on live load was incorrectly generated as zero for US LFD code.
    • For the piers with two bearing lines, the bearing lines were incorrectly swapped and shown in the related substructure models. This was only a graphic issue, and has been fixed.

For more details, please see the attached PDF file.

  • I am having an issue with LEAP Bridge Concrete Version 17.01.01.11. In the Precast/Prestressed Girder interface, the load rating option does not allow the user to select "Negative Live Load" as one of the rating options. (See attached Image). I have verified that this particular bridge model is continuous for live load so there certainly would be negative live load effects. I also noticed that on that same interface, the check box that used to read "Include Double Truck in HL-93 Design Loading" is now missing as well. Maybe these two issues are related? The program also tends to crash when searching the help screen feature.

  • Thank you very much for bringing this issue to our attention. After investigation, we found that it was a graphic issue, meaning the analytical results were still based on the correct layout of the two bearing lines although the bearing lines appeared to be "mirrored" in the 3D visual representation. We have already fixed the issue in the latest maintenance release v17.01.01.11. Please contact our Technical Support Group if you need further clarifications.

  • I am using the LEAP Bridge Concrete CONNECT Edition V17 U1 Maintenance Release - within the Substructure (RC Pier) routine.  I am entering a standard Pier with a rectangular cap on 3 columns nad having a double line of bearings.  I am using the UPSTATION view.  After inputting the basic geometry and bearing lines, the 3D Visual representation of the pier appears to be "mirrored" or "reversed" in the regards to layout of the bearing lines as measured from left end of cap.  I notice this because the distance from cap left face to the first bearing in each bearing line are different values due to superstructure skew.  Also, the 3D Visual representation does not match the "Upstation" graphics shown in the "Theory" section of help menu.

    Thanks