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  • Item attached with beam is missing after placing bearing in OpenBridge CE-Version 10.11,which will not happen in lower version software

    Hello there. In OpenBridge CE-Version 10.11,the following item is attached with the beam. However,after placing bearing,the beam item attached is missing. This problem will not happen in lower version software. Can it be fixed? Thanks.
  • Moment Capacity Due to Debonded Prestressed Tendons.

    Hi, I am working on the 80' prestressed concrete beam with a few debonded tendons. (Picture below) I am trying to see how moment capacity changes with the change of debonded length of the tendons. Below are the outputs for the provided moment…
  • Auto Load Generation: LL & BR in LEAP Bridge Concrete Substructure

    Hi, Dear All, Please advise that how the "number of lanes loaded" is determined? In the "superstructure parameters", I entered 7 as "number of lanes". But here only up to 6 I can select. Thanks, Dong
  • LEAP Bridge Concrete Substructure Auto-Design

    Hi, Dear All, Please see the following picture. Questions: 1. Is it possible for us to look into the footing design calculation details in LEAP bridge substructure? 2. The required bar area is constant through the footing for both X & Z directions…
  • Questions about Wind Load Generator and some more in Leap Bridge Substructure

    Hi, Dear All, Could you please let me know how the Z is calculated in the wind load generator? How do we deal with the wind load on the crush wall which is under the column but above the footing? Also, what is the best practice to enter the buoyancy…
  • RC-Pier LEAP Bridge: Column Seismic Shear Design

    Hello - I am modeling hammerhead piers in RC-Pier Version 20.00.00.58. EQ/ES/LS loads are applied at the bottom of the column with a user-defined seismic load combination. For some piers, the seismic shear output at the top of the column shows Combo …
  • Problems re-opening files in LEAP Bridge Concrete, getting "database reading error"

    PROBLEM: Able to create new OBD file and also create new LEAP Bridge Concrete models, but getting a Database Reading Error when opening then again. RESOLUTION: Please check if you have Sentinel One for Antivirus. Whitelist the following EXE files…
  • How to save reinforcement design? LEAP Concrete Substructure

    Hello, I am working in OpenBridge (10.9.1.15) StandAlone LEAP Concrete. I have a question about how to save reinforcement design in LEAP Concrete. When I am working in Substructure, I generate loads, run analysis and then design the reinforcement…
  • Column P-Delta Effects

    Hi. When LEAP determines the moment interaction diagram of a column that was analyzed using P-Delta affects does LEAP adjust the moment interaction diagram for the deflections? Such as for a loss of stiffness in the columns due to the deflections as stated…
  • LEAP Concrete Concrete Strength Issue

    I am working in LEAP through the OpenBridge Designer BIM workflow. I have changed the concrete strength for an element in OpenBridge Modeller, but it isn't updating in LEAP Concrete. Please advise. OBM LEAP
  • Lateral Beam Spacing - Leap Bridge Concrete

    Hello, I would like to know how the lateral beam spacing is measured in Leap Bridge Concrete when the beam is not symmetrical. (Example: Beam C.G. to Beam C.G. or center of the web to center of web or some other method)
  • Leap Bridge Concrete CONNECT Edition v21.01.00.22 | LBC library is not set or has invalid location

    I am running into issues when I open LEAP Bridge Concrete CONNECT Edition v21.01.00.22. I get an error stating "LBC library is not set or has invalid location". When I browse to the Preferences tab, it appears that all of the paths to the different…
  • Inverted T Beam- Ledge Reinforcement

    Hello, How do I control the spacing of the ledge reinforcement for an inverted T beam? I do not see a dialog box, I'm using LEAPBridge Concrete V 21.00.00.24. Thanks,
  • What are the limitations when transferring data from OBM to Substructure of LEAP Bridge Concrete

    11. Substructure: Pier Location offset is measured in OBM, along the SupportLine, whereas in LBC it is measured perpendicular to the alignment. The conversion is done on the fly when data is transferred from OBM to LBC. Since LBC does not support…
  • LBS Substructure Module Imported Centrifugal Force

    Hello, When I first open the Substructure Module there is a CE load that is imported from LBS. This load only has a couple force in the Y direction acting at the exterior bearings. However, when the Auto Generation tool is used, lateral forces…
  • LEAP Concrete Live Load Distribution

    In LEAP Concrete superstructure module for a pedestrian load case with wide sidewalks (10'+) is there a way to toggle the live load to only be located within the clear roadway or must the distribution factors be computed manually? It appears if the curb…
  • Leap Bridge Concrete 10.10 | Substructure Module (RCPier)

    I always get this error after designing the columns in LeapBridge Concrete Substructure Module (RCPier). Any thoughts on how to fix this error?
  • OpenBridge Designer CONNECT Edition 2022 Release 1

    This topic summarizes the new enhancements in OpenBridge Designer (OBD) CONNECT Edition 2022 Release 1 and its components OpenBridge Modeler (OBM), RM Bridge, LEAP Bridge Concrete (LBC), and LEAP Bridge Steel (LBS). The full list of enhancements and error…
  • LARS | LEAP | OpenBridge | OpenTunnel | RM

    This is the Main Page of a series of Wiki articles on the Be Communities page for OpenBridge and OpenTunnel engineering software solutions from Bentley Systems Inc . OBD - OpenBridge Designer OTD - OpenTunnel Designer OpenBridge Designer includes…
  • Has Leap Bridge Concrete been updated to expand the use of Strut and Tie Modeling (STM)?

    My version of Leap Bridge Concrete currently allows for the use of STM in hammerhead pier caps, but we also need that option for all cap types in multi-column bents. We also need an STM option for prestressed and CIP concrete girders in Leap Bridge Concrete…
  • Two bridges connection

    Hello, I,m trying to create a Bent where 2 separate bridges meet, is this even possible to model in Openbridge Modeler? Ultimately, I want to transfer the model to LEAP to run the analysis.
  • Assigning Service Request for OpenBridge Products

    To create a new Service Request for OpenBridge Products the users should follow the instructions at the link below and then enter the Product as OpenBridge Modeler or OpenBridge Designer . How to log Case? Service Requests…
  • LEAP Concrete live load deflection calculations for prestressed concrete voided slabs.

    LEAP is calculating LL deflection Service 1 Live Load but does not flag (turn red) that it exceeds L/800 for vehicular limit. Also, LEAP Concrete is not checking that the minimum depth of AASHTO table 2.5.2.6.3-1. Am I missing a box check so LEAP will…
  • Shrinkage Strain Load & Moment capacity error - LBC Substructure

    I have bent that is being constructed in two phases so some shrinkage will happen on the first phase before the next phase is constructed. In the final condition, I could assume the entire shrinkage strain is applied to both sections but that will be…
  • LEAP Concrete Column in Tension

    Hi. My hand calculations show that my concrete column will go into tension for my earthquake loading, but the my LEAP Concrete Diagram for the column doesn't show anything for the interaction diagram for a column in tension. Is there a check box that…