Hi all. In the design of a cable-stayed bridge, what is the allowable displacement of the A and H shaped towers under live load? Best regards.

Hi all. I hava some question about steel composite brige as follows: 1. To calculator stress point of section, Rm Bridge automatic use short-term section for live load and load case type Non-permanent and use long-term section for load case type Permanent…

Hi all. In continuous beam structures, the allowable downward deflection of the bridge under HL93 load is L/800. So may I ask what is the upward deflection of the continuous bridge structure under HL93 load? best regards.

I'm attempting to simulate how thermal loads may affect the backfill behind an integral abutment by deploying PLAXIS 2D. I modelled the concrete bridge deck as a Linear Plate element and included a prescribed displacement near the top of the abutment…

Hi all. I have a question about Reinf crack for prestressed concrete as follows: If you calculator stress bot of section beam in MinMz_Service exceeding allowable stress tension limit is 0,5 x sqrt(f'c), you can calculator reinf area to control crack…

Hi all. I hava some question about steel composite brige as follows: 1. To calculator stress point of section, Rm Bridge automatic use short-term section for live load and load case type Non-permanent and use long-term section for load case type Permanent…

How do I calculate AX, IX, IY, IZ, AY, AZ, YD, and ZD for a T-BEAM bridge section in the general option in STAAD ?

Hi everyone, I finished model and analyzer in extradosed bridge ( pictures below are my cross section and internal force ) I want to see the reults of deck (I nternal force of deck , Influence lines of deck , Ultimate load check of deck,...), Can…

Hello everyone, I needs help about create PLSYS for ultimate check and fibre stress check in stages. Like the picture below, Thanks.

Can LARS Bridge load rate ACROW Truss?

I am using Leap Bridge Concrete CONNECT Edition v17.01.01.07. I used ABC wizard to model a two span non continuous bridge (110'-104') with a 17.5 degree skew. The deck in span 1 is 66.6 ft while in span 2, it flares from 66.6ft in the interior bent to…

Is there a way to add a supplemental composite DW load for a poly wearing surface in Leap Concrete Bridge? I want to keep it separate from the Future Wearing Surface (Composite DW) load I already have. This is necessary to accurately calculate camber…

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…

Hello, I am currently a senior in Civil Engineering and am currently working on a capstone project. The bridge to be designed is 120 ft long with a 12 degree skew and when attempting to add the skew I get a notification saying the roadway limit has been…

When calculating the top and bottom stresses at the transfer and bearings, does LEAP take into account the development length? It seems that the stresses its calculating at the bearings and the transfer are higher than what they should be. Does LEAP use…

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.

Hello, There appears to be a font compatibility issue. In the program LEAP GEOMATH V8i, it looks like you should be able to adjust the window in order to see the rest of the menu, however there is no option to move it. This issue is not resolved…

When analyzing a bridge that was designed as NONCOMPOSITE SIMPLE SPANS for dead loads (not including parapet & FWS) and as CONTINUOUS for live loads, how should the girder and slab information be inputted in order to account for this?

I am having difficulty with the HL-93 load in LARS v. 5.00.01.00. When I attempt to use the HL93 load the program instead rates the bridge using a OV20 load.

I am designing a two stage pier wall. There is no option for just a wall in RC pier. Is there a way to trick the program, I have tried a couple of different options but none have worked. The top wall is tapered in both directions and the bottom wall does…

LEAP Bridge v8.1.0 incorporates the following enhancements: • The ABC Wizard can now directly read in alignment, cross-section and profile information from LandXML files. The bridge model can now be generated very accurately directly utilizing…

With the release of LEAP Bridge Enterprise SS5 v12.01.00.57, we are eager to get all of our LEAP product users onto the latest and greatest, however our environment is currently a mixture of LEAP Bridge Precast 9 and 10. Is there any supported upgrade…