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  1. AndyZ

    Based on Formula, can I show a particular bitmap?

    I have a formula which tells me how the forces are arranged on a free body diagram. Is there a way to force it to display a particular bit map picture. If I wanted text, I could use an if statement and then specify the resulting text to display. Can I use something similar for an object or a...
  2. AndyZ

    Spliced Concrete Post Tensioned Beam Cost

    http://www.virginiadot.org/business/const/resources-bidtabs.asp for bid tabs on drop-in post tensioned beams Look at August 2003 on the VDOT website above Winning Contractor was Archer Western (they won 2 that month) Contract ID C00014691B02 I believe the appropriate items are listed below...
  3. AndyZ

    AASHTO loading interpretation for Pier design

    Place 1 truck with the CG over the pier (you can also check with axles over each bearing if you are worried to check for absolute maximum load), or use the lane load including the point load as directed by AASHTO. Usually for the span lengths where simple spans are economical truck controls...
  4. AndyZ

    Operating Rating Level - interpretation

    Getting back to the original post... "The AASHTO Manual is not quite clear. It seems to be saying that the O.R.L. should be used for an extreme circumstance. Can construction loads from heavy rigging equipment be considered one such circumstance? Or is it meant only for emergencies or...
  5. AndyZ

    Rating existing bridges

    From above: "What design vehicle is used to analyze existing bridges? An H12 (20 kip axle) seems highly inappropriate as its gross weight would not jibe with the heavier legal trucks on the road?" A rating merely a method of determining the actual capacity of a given structure. The...
  6. AndyZ

    Beam strengthening

    Expanding on FField, the there is no horizontal shear if the bolts are coincident with the cg in a section that is doubly symmetric (both horizontal and vertical axes). If the bolts are above or below the cg, then there will be horizontal shear. And you would use the method you always have...
  7. AndyZ

    simple key stroke macros in excel

    Double Quotes worked like a champ. THANKS.
  8. AndyZ

    simple key stroke macros in excel

    Thanks for the help, Ctrl+H sounds good. It works for inserting the apostraphe's but I can't get it to strip them. The search criteria only seems to look in formulas and values, not in labels. I am using XP, I don't know if it is a version change, or I just haven't used the replace feature...
  9. AndyZ

    simple key stroke macros in excel

    I used to use macros all the time in lotus 123. you could record and edit strokes in a cell, or with a little practice you could type in the key strokes. I recently tried to record a key stroke macro in excel and found it did not work. in 123, my macro would look something like this...
  10. AndyZ

    AASHTO LOADINGS

    This may be late, but generally speaking most agencies will accept a design according to the AASHTO specification in force at the time that you start a project, most do not expect you to switch 2 months before a project is due. AASHTO revisions are often not available in print until many months...
  11. AndyZ

    Timber deck strong enough?

    If this bridge is not open to the public, I suggest getting an engineer to confirm that your vehicles are really equivalent to an HS20 loading. Your vehicles may not approach HS20. In addition, if this is a private structure with low volumes you may want to design a deck for use under an...

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