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.

Hi - I'm designing a full height abutment and wingwalls on a shared footing supported on piles. LEAP has calculated an extremely large design moment and I can't quite back into the number. Can you explain how the software determines the maximum design…

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?

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)

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…

Hi, I'm working on an abutment design and am trying to check pile reactions using the bolt/rivet theory as described on the RM Wiki page: Abutment Design -- Pile Reaction calculation I have 2 questions: 1) I just wanted to quickly confirm the formula…

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 …

Hello, jaya sha from Girish Metal India I'm attempting to design some curved and superelevated steel tub girders. This is the resulting moment diagram for dead load from the initial analysis. I did not change any of the default load settings. …

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…

How do I install LEAP RC Pier v14.0019 with our selectserver? It used to install fine. Now when we try to install on a PC,it asks for the correct activation and selectserver info which we enter then it says its activated, When we click on the executable…

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…

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…

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…

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…

Hello, I have 95 ft long and 12 ft wide abutment footing on 2 rows of piles. Abut stem is 88 ft long. How is the Leap program calculating Dist (ft) , dv, Vu and Phi Vc for X and Z ? I will appreciate the response. Thanks,

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…

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…

Hello, Currently, when trying to import girder reaction (bearing loads) specifically for Live load. The user needs to upload one Text file at the time. This is very time consuming and requires a lot of attention to avoid any mistake while selecting…

Hello, Is LEAP Bridge concrete / RC-Pier capable of having a structure simple span for dead load and continuous for live load (SDCL)? Thanks.

I am trying to use auto load generation to create live load and braking force load cases. I keep getting an error when I try to generate the loads saying that I need to set centrifugal force to manual input because I input the longitudinal reaction. The…

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…

Hi, I am designing a multi column pier on spread footing in LEAP 20.00.00.58. I noticed that the option in A/D parameters of designing footing per AASHTO 10.6.1.3 disappears once multiple columns are specified in the model. Is this a bug, since 10…

Hello, I am designing the shear reinforcement in a straight pier cap for a multi-column pier. The issue I am having is that whenever I increase the number of legs for my stirrups, the area of steel required also increases to the point where increasing…

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…

Good morning, After completing my superstructure design, I used the substructure design/analysis tab to import all of my loads from the superstructure into the substructure. It pushes all the data into .rcp format. Then, I try to create vessel impact…