I have a multi-span structure with 3 very similar piers with variable pier caps. In the ABC bridge wizard I defined a generic rectangular cap pier since it did not have the variable depth option in the wizard. I have now redefined one of the piers with…

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…

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, 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…

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…

OpenBridge Special Interest Group: Using a BIM or Standalone Workflow in OpenBridge Designer Host: Alex Mabrich, Senior Application Engineer, Bentley Systems, Inc. Date/Time: April 7, 2020 at 2 p.m. EDT Register Now This OpenBridge…

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…

For column design using "Substructure" (RC Pier) in LEAP Bridge Concrete CONNECT V17, why is the check box for moment magnification gray'd out? I am designing a two column (round) pier with a straight, rectangular bent cap. I have tried to model it both…

When entering the footing size on the footing definition tab for a spread footing RC Pier has a box you can check that reads "compute forces at bottom of footing". When this box is checked the bearing pressures and shear forces are higher than if this…

Hi, Dear All, The model is about a hammer head design. To compare with two modelling options in RC Pier. I used both "Hammer Head" and "Multi Columns" pier configuration options to design it. I found something inconsistent for the cap auto design…

Hi, Dear All, I have a question regarding "Pier Configuration" options. I am trying to use RC Pier to design a hammer head. I am wondering whether I could use "Multi Columns" option and design it as a "single-column bent". I know there is an option…

Hi, Dear all, In the "Hammer STM" dialogue, "Width of all Compressive Struts" is a required input. Could you please let me know what exactly it is? Please have a look at the attached picture first (from AASHTO LRFD 2014). Question 1: In picture…

Recently I am working on a transition bent which is a multi-column bent. The approaching span is simple span, and the main span is continuous-three-span. I am considering using the 3rd option for live load auto generation since the first two options …

The flexure check location in X direction is from one edge to the other edge. I don't know why there is As_req at the edge of the footing. I am new to footing design. Some one helps please~ THX

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…

How does RC Pier calculate the lateral pile resistance for battered piles? Thanks.

I am designing an abutment using RC Pier. Under the Loads tab, I input/generate EV & EH loads. However, when I run an analysis and review the load combinations the vertical or horizontal earth loads are all "0". It appears that these loads are being applied…

We are working a substructure design in which, due to the geometry of the roadway, it may be necessary to have the column rotated at an angle from the orientation of the pile footing on which it sits. In the past we've had to handle this via calculation…

I'm desiging a pier wall with a cap on top. The wall is about 2'-6" wide and the cap is 4'-6" wide (side view). The "Wall Pier" option does not allow a cap. The "Multi-Column" option requires a minimum of two-columns. I've input two wall columns but the…

I noticed my live loads were larger when I auto-generated them in RC-Pier than compared to when I imported them from Conspan. Is there a reason for this? This yields a more conservative pier design, but is it accurate? Thanks.

In RC Pier, is it possible to apply a load factor to the self weight of concrete (for cap self weight in particular)?

A few RC-PIER users recently asked questions about the two analysis options in the abutment design and the related footing design reports. Here is some clarification. In abutment design, when "Cap as continuous beam" is selected for the frame analysis…

I have created a model of the roadway in Conspan and then generated the loads and exported them into a text file. I have also created a model of one of the piers for that bridge. When I go to import the loads from the text file I receive an error message…

Has anyone else had a problem with RC Pier just shutting down? Ours keeps doing it and then the data is lost and we have to redo again. Tech support had us uninstall and reinstall but it didn't help. If anything it is worse now. Any suggestions…