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…

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…

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

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…

How can I output the RC-Pier STM analysis for all Load Combinations to Excel? In the analysis tab, i tried using the "Print..." button and choosing "All combinations to Excel File". This appears to only output analysis related to the entire hammerhead…

I have several questions and need clarification on several aspects of the load generation in LEAP Bridge for substructure design. 1. For WS, is the "barrier height" in the Geometry tab used for any other purpose besides determining WS? I want to use…

Good morning, Right now I'm developing an analysis for an end bent and I was concerned about if just with the inputs of the geometry for the back wall would automatically be considered as a self-weight loading or do I need to include it's reaction…

Hello, I have a question regarding shear and torsion design in RC Pier. In RC Pier, under Analysis --- AD Parameters---Shear and Torsion Calculation , there is option which says " Shear force is equally distributed among stirrups ". I read the Help…

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…

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…

When using the "Generate Default Load Combination" feature, the load combinations generated are using different factors, like : - 1.4 for WS for STR GP 3, - 0.4 for STR GP 5, - and 0.3 for SER GP 1. LRFD 8 specifies 1.0 factor for all WS regardless…

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?

Hello, When attempting to create the load combinations I receive the following message - "Dependent loads of type WL and master loads of type WS are not equal in number. Please specify same number of two loads when cross combinations option is turned…

Hello, I am designing a multi-column pier substructure for a bridge. The substructure model is connected to the superstructure so I am able to auto-generate the superstructure dead load, Braking load, and Permit Live Loads. However, the button to generate…

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 designing a pile cap abutment in RC-PIER, but I'm unsure how to input the material properties. In the material properties tab, there are inputs for concrete cap, concrete footing, and concrete pile. I have a concrete cap on steel H-piles. RC-PIER…

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?

Hi, Dear All, I have a question regarding pile cap footing flexure design. The required bottom rebar area is 23.53. However 36.00 needs to be provided for the effective area 23.56. I checked RC-Pier tutorial for the LRFD footing design and I didn…

Hi, Dear All, I have some questions regarding the "live load generation details". First, it tells "values of live load generated at each bearing point are shown with impact factor". I did some hand calculations and I found actually these values…

Hi, Dear All, If I calculate live load caused bearing reaction directly as input for RC-Pier, I should consider multiple presence factor and should not consider impact factor in these reaction forces. Am I right? Please let me know. Thanks. …

Hi, Dear All, I have a question regarding "superstructure parameters" in RC-Pier. Say the pier I am designing is the middle pier in a two-span bridge. Am I right in the following input? Should I put 1 or 2 there? Is this related to "upstation"/…

Dear All, For the load combinations, there is a "parameters" button. For load dependency, we have two options, one is "cross combinations", and the other is "dependent load case combinations". For example, if Braking Load depends on Live Load…

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…