• Additional Composite DW load?

    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…
  • Inserting Individual Stirrups in CONSPAN

    I'm looking to test some individual locations for stirrups in a beam and was trying to insert a single stirrup into the design to test a few variables is this possible and if so how do you make sure it gets into the right location.
  • LEAP Bridge Concrete files will not open after saving and coming back.

    We've run into an issue where files created in the Precast/Prestressed Girder module in LEAP Bridge Concrete sometimes are not able to be opened after we save and come back to our work. We attempt to open the file and it will begin to load, then it stops…
  • CONSPAN - Precast Girders at Interior Supports

    I am using CONSPAN in my design and have a couple of questions about the method in which the program performs calculations. Does CONSPAN design prestressed girders, at the interior supports, as reinforced concrete beams? According to AASHTO, LRFD 5.14…
  • LEAP Bridge Concrete DW loads

    How does LEAP Bridge Concrete calculate the reactions for DL-Comp. (DW)? I added up all the DW reactions and compared to a hand calc of utlities and overlay loads. The total DW is nearly 4 times greater than my hand calcs. I have 4 beam lines with 0.05…
  • LEAP Bridge Concrete Reactions

    In the Shear/Moment Envelope (&Reactions) Design output what is the difference between live load Max, Truck, and Lane? Is the max HL-93 including truck and lane loading? I have a 6 span continuous concrete superstructure.
  • LEAP Superstructure - Prestressing Development Length

    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…
  • Modifying and fixing lane width in LEAP

    Hi, I am trying to fix the lane position on a bridge which carries railway traffic. Does Leap have the option of fixing the lane width to certain value and certain position , as in a railway bridge the position of rails are fixed ?
  • Composite Section for decked bulb tee?

    Hello, I'm designed a decked bulb tee and I notice that the composite section is the same as the beam section. The composite section should include the closure pours, but I can't seem to find a way to make this happen via the program or manual override…
  • LEAP Conspan - Elastic Gains

    In the hand calculations tutorial for elastic gains HC-37 None of the gains listed in my output can be matched when using the equation above. Has the equation changed recently and the tutorial not updated?
  • Error opening CONSPAN file (.csl) directly from a network drive using CONSPAN 14.01.00.01?

    I am receive the error dialog box below when opening a .csl file directly (double clicking on the file from Windows Explorer to open) from a network drive after updating to latest release on CONSPAN 14.01.00.01. I can select OK and move on but the…
  • Conspan 10th points

    From what I understand Conspan calculates 10th point increments from the total precast length and not the bearing to bearing span length. Is there a way to get camber and deflection readouts at the bearing to bearing 10th points? All the DOTs in New England…
  • Conspan Flared Girder

    Is there a tutorial or further information on how to use the "Flared Girder" option in Conspan? I am using version 14 and have entered the spacing between beams along the support but when the spacing is shown in the bridge section, the beam spacing is…
  • CONSPAN - Skew Angle

    Hi, I am designing girders for a span that has no skew on one end and a 45 degree skew on the other. There are 7 girders with lengths that range from 102.5' to 142.5'. I used the center girder's length as the Precast Length under the geometry tab…
  • CONSPAN Shear and Moment Envelope E-80

    I am having an issue with CONSPAN calculating the shear and moment envelopes. I am designing a 75 ft beam using the AREMA Cooper E-80 Live load. The shear and moment envelopes that I get are not symmetrical. The live load shear row (highlighted),…
  • RE: Question Regarding CONSPAN Shear Design

    This is the part of 5.8.3.5 code check in tutorial. BTW, is there a notation list for output file ? Some of the symbol used in CONSPAN is easy to understand. But some may not be that clear. Sincerely thanks again.
  • Question Regarding CONSPAN Shear Design

    Hi, dear friends, please help me with this following question. I read the tutorial of CONSPAN and it tells that CONSPAN does the longitudinal reinforcement code check (according to AASHTO LRFD 5.8.3.5). Where could I check this code check result in…
  • CONSPAN Tension Stress Limit Code Check

    Hi, Dear Friends, I was checking a CONSPAN model and I found one of the stress limits was not checked by CONSPAN. Is this a bug or actually I understood the code wrongly? See the attached pic, the "-0.501" is over the limit "-0.276" but it is not red…
  • Detensioning Failure

    I have a single span bridge using I-girders that I need close to the max amount of strands in. These are all straight strands, and I've had to debond to 4 different lengths from the end. The longest debond is 25' of my ~90' girder. When I look at the…
  • Positive Envelope Stresses Calc

    Hi, Dear Friends, I have a question regarding stress calc in CONSPAN. First, please see the following pic. I am trying to verify the calc results with a spreadsheet. Please see following pic. I was able to get the stress results due to DL…
  • CONSPAN Flared Girder Alignment Dialog

    Hi, guys, I have a question regarding "Bridge Alignment" for "Flared Girder" in CONSPAN. The help file tells "CONSPAN assists the design by computing the distance between supports along the centerlines of the bridge and, if desired, along the centerline…
  • QUESTION ON CONSPAN FLARED GIRDER GEOMETRY TAB

    Hi, guys, I have three questions regarding CONSPAN flared girder modeling. 1. In "Bridge Component Layout" dialogue, does the "Bearing" mean the center line of the bearings? 2. As you can see in the picture above, it is a curved bridge. How do I…
  • CONSPAN: how to model staggered diaphragms in skewed bridge?

    The diaphragms are staggered between girder bays and perpendicular to the girders. The program only allows me to create a diaphragm line cross all the girder bays, either skewed or non-skewed. How can I stagger them between the girders? Thanks.
  • Conspan Lateral Beam Stability During Lifting and Transportation

    I am investigating lateral beam stability during lifting and transportation for a beam designed in Conspan. I am concerned about how the program is calculating the lateral deflection caused by wind in both cases of lifting and transportation. I am able…
  • Customized output reports

    Is there any way to get a customized output in CONSPAN or LEAP Bridge? For example if I only want to print stresses at the same 4-5 locations along with some other outputs. Is there any way to accomplish this?