• Leap bridge concrete Flexure check

    Sumanth Reddy Katuru
    Sumanth Reddy Katuru
    Hi If we define bar length, is leap bridge software have capability to deduct development length based on dia of bar and calculate flexure check at that point.
    • 1 month ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • LEAP Substructure Cap Flexure Design @ Location 0

    Carolyn Perry
    Carolyn Perry
    Is there a way to adjust the POI so that the cap is not analyzing the flexure at location 0? Even when hooking bars the effective steel is still computed as 0. How do I get beyond this error?
    • Answered
    • 1 month ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • How to change the stress limits for the intermediate bent cap from normal exposure (=0.19 sqrt(fc) <0.6ksi ) to severe exposure (=0.0948 sqrt (fc)<0.3ksi) in leap bridge concrete

    Girish Sejekan
    Girish Sejekan
    I need to change the stress limits for the bent cap from normal exposure (=0.19 sqrt(fc) <0.6ksi ) to severe exposure (=0.0948 sqrt (fc)<0.3ksi)
    • 3 months ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • RCPier P-Delta Analysis increases axial forces in the column.

    Aisulu Saliyeva
    Aisulu Saliyeva
    When running analysis with and without P-delta I noticed there is a substantial increase in the axial column force when P-delta is applied. At the node 1 the difference is about 300 kips. What could be a reason for such an increase? Any insight is appreciated…
    • 8 months ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • RC-Pier LEAP Bridge: Column Seismic Shear Design

    Kara Turiano
    Kara Turiano
    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 …
    • 10 months ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • Has Leap Bridge Concrete been updated to expand the use of Strut and Tie Modeling (STM)?

    Levi Gottsponer
    Levi Gottsponer
    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…
    • Answered
    • over 1 year ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • Circular Column Interaction Diagram

    Rob Whiteside
    Rob Whiteside
    Hello. I'm wondering how LEAP Version 21.01.00.22 calculates the maximum axial load displayed in the diagram. The diagram displays a maximum axial force allowed of 1802 kips. As expected the 1802 kips doesn't change regardless of the load combination…
    • over 1 year ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • Does RC Pier check shear friction in the pier cap (AASHTO 5.7.4)?

    Greg Jackman
    Greg Jackman
    Does RC Pier check shear friction in the pier cap (AASHTO 5.7.4)? I've looked in the output reports and didn't see reference to this spec section. I've also looked in the application help interface and couldn't find it. Note: my application version…
    • over 1 year ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • LBC Substructure Moments

    Nate Hicks
    Nate Hicks
    I am seeing different minimum moments in my pier cap when comparing the cap design output and moment diagram to the actual analysis output. The cap design and moment diagram are both reporting a maximum negative moment of -3599 k-ft, but the analysis…
    • over 1 year ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • Data Modification "Edit..." changes to parameters are not saved even after saving file and exiting the program

    David R.
    David R.
    Hello, This is an issue that I have seen with previous versions and still has not been resolved. When the need for different material properties and other design parameters is different from the generalized materials tab parameters, the use of the…
    • over 1 year ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • RC-Pier LEAP Bridge Concrete SDCL

    David R.
    David R.
    Hello, Is LEAP Bridge concrete / RC-Pier capable of having a structure simple span for dead load and continuous for live load (SDCL)? Thanks.
    • over 1 year ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • Various OBM issues and questions

    William Shekarchi
    William Shekarchi
    Hello all, I have a few questions and concerns regarding OpenBridge Designer (version 10.10.00.26) that I hope someone is able to answer. Please find my questions below: 1. I have a situation where multiple bridges share the same substructure (abutment…
    • Answered
    • over 1 year ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • LEAP Bridge - RCPier Centrifugal Forces Considerations

    Aisulu Saliyeva
    Aisulu Saliyeva
    Hi, There are cases where centrifugal forces produce a moment that actually counteracts the critical moment in the column, does RCPier consider effects due to vehicle cases without centrifugal forces as provisioned in AASHTO Spec (See below excerpt…
    • over 2 years ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • LEAP RC-PIER P-delta effect in load combinations

    Aisulu Saliyeva
    Aisulu Saliyeva
    When checking Show P-delta Effects in the Analysis tab, are the values shown represent values with p-delta effect? For example, are the column/shaft moments magnified with p-delta factor in these load combinations (with a "C" on the end of the LC#)? If…
    • over 3 years ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • RCPier - Response Modification

    Erika Meeker
    Erika Meeker
    I am using Leap Concrete Version 18.02.02.03 for a multi column pier design that includes seismic forces. I need to apply a response modification factor for the columns and the help guide states that this can be modified in the Seismic Parameters. However…
    • over 3 years ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • Auto Generated Live Load Cases in LEAP Bridge Concrete - Substructure

    Nathan Hicks
    Nathan Hicks
    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…
    • over 4 years ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • Leap Bridge Concrete Wall Pier - Moments at bottom of wall

    Patricia O'Neill
    Patricia O'Neill
    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…
    • over 5 years ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • Bearing Spacing Dimensions Differ Between Main Bridge Model and Substructure Module

    Andrew Sottile
    Andrew Sottile
    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…
    • over 6 years ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • RC Pier (LEAP SubStructure) Live Load Auto Generation Reactions

    Logan Yarbrough
    Logan Yarbrough
    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…
    • over 6 years ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • LEAP Bridge Substructure/RC-Pier LFD Live Loads in the Negative Moment Region

    Rob Whiteside
    Rob Whiteside
    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…
    • Answered
    • over 6 years ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • Include Truck or Lane Load on Approach when Auto Generating Live Load

    Rob Whiteside
    Rob Whiteside
    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…
    • over 6 years ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • Can LEAP RC-Pier analyze/design for a cantilever abutment?

    Alex Lo
    Alex Lo
    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
    • over 7 years ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • RC-PIER Live Load Auto-generation verification

    Ryan Fehr
    Ryan Fehr
    Does anyone have calculation verification for the live load auto-generation function in RC-PIER? Or has anyone else had problems verifying the LL output from RC-PIER?
    • Answered
    • over 7 years ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • RCPier crashes on open

    Moshe Cohen
    Moshe Cohen
    I am using Leap Bridge Enterprise v14.00.00.09 in a Win7 environment. When I open the Geomath and Conspan modules, they work fine. When I open RCPier, it gets to a screen which says "Loading Project File" and then crashes, and it sometimes gives me a…
    • over 8 years ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
  • Wind Load Auto Generation

    Mark Philipps
    Mark Philipps
    I have created a Leap Bridge Enterprise file consisting of a 3 span precast girder Conspan Model, and single column bents with bent caps created in RC-Pier. I'm trying to generate WS loads from the Auto Generate feature. I assume the Wind Pressure for…
    • Answered
    • over 9 years ago
    • LARS | LEAP | OpenBridge | OpenTunnel | RM
    • LARS | LEAP | OpenBridge | OpenTunnel | RM Forum
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