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Conspan 10th points

Nick Caron
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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 need the bearing to bearing 10th points for camber and deflection tables shown on plans.

Example:  The total precast length is 72.5ft and the bearing to bearing length is 71.0ft, Conspan reports 0.1L as 6.50ft which is 0.1x 72.5' - (72.5' - 71.0' )/2.  This is a different 10th point than the clear span tenth point of 71' x 0.1 = 7.10'.

Thank you for any help you can offer.

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  • 0 Offline
    Vinay,
     
    I have seen this question on the forum and it did not answer my question.  My question is “Is there a setting to get the 10th points from bearing to bearing as opposed to the 10th points along the total precast length?”  Your example shows that the 0.4L is calculated as 45.90ft from the bearing.  Whereas the 0.4L point for the bearing to bearing distance would be 46.00ft.  I have noticed that the largest discrepancy between the two methods is at 0.1L and the method values slowly converge until they are the same at 0.5L.  Our clients require us to report information at the 10th points of the bearing to bearing length not the total precast length.  We need a way to be able to get this data from the design program and show it in our calcs and on the plans.
     
    Thank you for your assistance,
     
    Nick
     
    Nicholas D. Caron, P.E. | Project Engineer | CLD Consulting Engineers, Inc. | nickc@cldengineers.com
    540 N. Commercial Street, Manchester, NH 03101 | Office: 603-668-8223 x 153 | www.cldengineers.com
     
     
  • 0 Offline in reply to Nick Caron
    Currently there is no option for the user to input a point of interest in Conspan.

    One of the workaround solution I can suggest is to make Precast length , Release span length and Bearing to bearing length in Geometry TAB under Span Data to be of same length .
  • 0 Offline in reply to Vinay mysore
    We too are having similar issues with the way Conspan reports 10th points. Will there be a fix to this in the future? Forcing the precast length, release span and bearing-to-bearing lengths to be the same changes the prestressing and cambers, which really isn't any better.
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