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Hello, I have been experiencing a substantial amount of instability/crashing in LBC 20.00.00.46. The program will randomly freeze and become unresponsive. This happens when I run an analysis, look things up in the help manual, attempt to save, and many…

how can i change bearing dimensions at bridge parametric layout? and how can i change the bearing distance at bearing/beam seats tab?

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…

There is an A/D Parameter, under the "Footing" tab to consider effective footing dimensions in analysis of a spread footing. This appears to calculate the effective footing assuming the footing is bearing on soil (as opposed to rock). Is there a way to…

I am designing a hammer head pier cap using LEAP Bridge Concrete's strut and tie option. I have input "main bars" and "stirrups" under the Cap tab. When I check the Design Status of the pier cap, I do not see where it checks the stirrup input against…

I am looking for pile reaction as piles integral with cap then save the file. next time open the file, it is back to "Cap as continuous beam" How can i fix this situation?

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…

Hi I have modeled multi column pier with ABC modelling and when i am analyzing Pier, it is not performing analysis and giving error Frame is unstable. Please help me and if you guys have time to check. Thank you Vivek Kushwah +91-7974638191…

Hi All I am modelling and designing multi column pier in Leap, But after applying loads i am getting ambiguous bending moment, also huge reinforcement is showing on designing. Please find the model attached and any one please can help and check the…

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…

I'm working on a project with several multi-column piers and am having trouble copying loads into the load data tables. The superstructure has pretty complex geometry so most of the loads are being calculated outside the program in spreadsheets. I've…

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…

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…

I am designing a pier with a spread footing with unbalanced soil loads on the footing with a large crash strut that will be cast directly on the spread foundation that will be running the length of the foundation. This crash strut performs double duty…

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…

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…

I'm designing a 2 column pier with a tall (15') wall. How does RC pier treat the wall? It looks like it does not deflect and I'm afraid that modeling it that way would be too conservative of a design for the columns.

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…

Are there any plans to include auto-generation of Water Loads in RC Pier? For example, the user inputs the water elevation, soil elevation, velocity, drag coefficients, and flow angle, and then RC Pier could convert this into X and Z loads on the column…

It appears that when checking the shear and torsion in cap, RC Pier combines the maximum shear value with the maximum torsion value at each point, even though they come from different load combinations. Am i correct? Was that done intentionally? If so…

I am aware of the the two live load generation methods (constant spacing and variable spacing), and have a good understanding of their differences. Specifically for the variable spacing method, would it be possible to add an input for the user to define…

Hi there, I'm checking a design calculation for an abutment on spread footings done in LEAP RCPier. I couldn't find any information in the user manual or input/analysis tabs to determine how bearing pressure is calculated for a wall bearing on soil…

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

I try to create a pier with a tapered cap, which is unsymmetrical and with a column near one edge. Is it possible? I know i can create a symmetrical cap with a column offset from the center, but the location of non-tapered segment cannot be modified…

Is it possible to model an open joint in a pier cap in RC-Pier? See image below. If not what would be the best work around? I'm using RC-Pier V8i (SELECTseries 6), Version 13.00.00.68.