• LEAP Bridge Concrete v19 crashing and wiping model

    I'm working on a two-span prestressed PCEF bulb tee bridge for a state DOT in LEAP Bridge Concrete v19. I'm new to LEAP Bridge Concrete, but I've used other LEAP products. We're at the TS&L stage, and I'm trying to get the preliminary design of the superstructure…
  • LEAP BRIDGE CONCRETE V19 U3: CAMBER AND DEFLECTION VALUES NOT CALCULATED IN DESIGN SUMMARY

    Occasionally when I print beam design results, I will get zero camber and deflection values reported in the design summary. I have to go back and rerun the analysis and that clears it up. Is this bug documented and is there a fix?
  • Difference between release stresses and release lifting loops stresses

    What is the difference between the stresses given for the depression point in the "Release Stresses" box and the "Release Lifting Loops" box?
  • Leap Bridge Concrete Video Problem?

    Has anyone seen this issue in lasted version of LEAP End user has new Lenovo P52 laptop and all drivers up to date. When rotating object you get a fan image around object as shown in screenshot. We have another user with same P52 laptop and drivers…
  • Combined node deflection ordinates and Appendix A6 in LEAP Bridge Steel

    Hi, I'm using LEAP Bridge connect edition. Is there a way to get combined dead load deflection ordinates from LEAP bridge? I know the camber table will provide these values, but we prefer to also have a more formal table of values for backup design…
  • Auto Generated Live Load Cases in LEAP Bridge Concrete - Substructure

    I am designing a hammerhead pier using the substructure module in LEAP Bridge Concrete. The geometry is a little odd...it's a hammerhead cap on a circular column. To compare the results for the cap design from the conventional sectional design & strut…
  • LEAP Bridge Concrete Shear Stirrup Spacing

    I hope this is an easy question regarding the shear stirrup spacing... Does the program insert a stirrup at the start location specified? For example, in the image below, is there a #3 2-legged stirrup provided at 0.00', 0.25', etc. or do the stirrups…
  • What edition of AASHTO does LEAP Bridge Concrete use?

    Hellow, I need to use AASHTO LRFD Bridge Design Specs - 7th edition with 2015 & 2016 interim revisions for my project. I have following options and want to know the version which is appropriate for the project. 15.01.00.05 16.01.00.10 16.02…
  • Additional Composite DW load?

    Is there a way to add a supplemental composite DW load for a poly wearing surface in Leap Concrete Bridge? I want to keep it separate from the Future Wearing Surface (Composite DW) load I already have. This is necessary to accurately calculate camber…
  • Leap Bridge Concrete Wall Pier - Moments at bottom of wall

    I am using Leap Bridge Concrete to design a skewed wall pier. After analyzing the pier, I noticed that for the braking force, that the sum of the forces in the z-direction at the top of the wall did not equal the sum of the forces in the z-direction at…
  • AASHTO Code Verification

    Hello, I was wondering what edition of AASHTO is LEAP Bridge Concrete v16.00.00.24 using? I was unable to find it in the software itself so if it's possible to describe to me how I can find this within the program as well I would appreciate it. Thanks…
  • Bearing Spacing Dimensions Differ Between Main Bridge Model and Substructure Module

    I am designing a 2-span precast prestressed beam bridge in LEAP Bridge Concrete CONNECT Edition v17.00.01.01. The bearing dimensions along the pier cap are shown correctly in the following view under the 'Substructure' tab: However, when you click…
  • Self Weight Reaction

    In Conbox, when we select the Self weight reaction in the analysis model, does it include the self weight of the piers defined as well?
  • LEAP Bridge Concrete DW loads

    How does LEAP Bridge Concrete calculate the reactions for DL-Comp. (DW)? I added up all the DW reactions and compared to a hand calc of utlities and overlay loads. The total DW is nearly 4 times greater than my hand calcs. I have 4 beam lines with 0.05…
  • LEAP Bridge Concrete Reactions

    In the Shear/Moment Envelope (&Reactions) Design output what is the difference between live load Max, Truck, and Lane? Is the max HL-93 including truck and lane loading? I have a 6 span continuous concrete superstructure.
  • RC Pier (LEAP SubStructure) Live Load Auto Generation Reactions

    How does RC Pier (LEAP SubStructure) account for skew when calculating the bearing reactions for the Auto Generated Live Loads. I can replicate the reactions when there is no skew, but I have issues when skew is applied. Any assistance on the matter would…
  • LEAP Bridge Substructure/RC-Pier LFD Live Loads in the Negative Moment Region

    I am using the LEAP Bridge Substructure module to design a pier for a continuous 4 span structure using HS20 LFD loads. In the AASHTO Standard Specifications, it gives you a few options for the loading. One is that you can use a lane load with one concentrated…
  • Include Truck or Lane Load on Approach when Auto Generating Live Load

    I am using the Substructure module of LEAP Bridge Concrete. According to AASHTO LRFD, you can't have a truck on both the approach slab and on the deck, but you can have a lane load on both. When generating live loads for an abutment, there are two…
  • OBM - Abutment Display Error

    The depth of my Abutment Pile Cap displays correctly when shown in the "Edit Abutment" window but is not being shown correctly in my 3D model. It is currently shown being shown much deeper. I also have a few general comments/suggestions regarding…
  • Can LEAP RC-Pier analyze/design for a cantilever abutment?

    Can LEAP RC-Pier analyze/design for a cantilever abutment? I used RC-Pier for Abutment Cap with Pile Design before, but not sure if it works with cantilever abutment design. Thanks Alex
  • LEAP Library in Central Network Location

    Good morning all, I have several users that run LEAP Bridge Enterprise, but I do not run it myself, so my apologies if this is a dumb question. The little bit that I have seen when they are running it, the custom libraries are stored on each user's…
  • How to model a cantilever pier in Leap

    I need to model a cantilever. Please direct me to relevant links/files/resources
  • Prestressing Tendons in Leap Bridge Concrete

    Is it possible to model a prestessed beam using two different sizes of strands. My top flange has 0.5" tendons pulled to 2000 lbs. However, the main reinforcing strands in the beam are 0.6" 270K LL. Is there any way to accurately model a cross section…
  • LEAP Bridge - Variable Depth Deck

    I am designing an adjacent box beam bridge with a variable depth deck in CONSPAN. I cannot figure out how to input a 4.5" deck thickness at the copings, and a 8.5" deck thickness at the structure centerline. Can someone please assist me with this task…
  • median between highway lanes

    Is there any provision of defining median or divider in a bridge model in leap ?