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Recent content by DavidA

  1. DavidA

    Concrete roof slab load

    Thank you spinner1 for the topic! It lead me to reminisce about all the thin-shell structures we did in the 50's and 60's. There was a Mexican architect of that era, Felix Candelera I think, whose "birdbath" structures were primarily steel nets covered with concrete.
  2. DavidA

    Bracing of Piles

    I agree with Qshake, but your Geotechnical engineer should review the soil for potential liquefaction. Under some seimic conditions the jello we call soil could lose some stiffness. This could pose a problem, requiring grade beams or the like to connect the pile caps.
  3. DavidA

    Structural Fee Percent of Total Fee

    As a practicing A/E I agree with engcomp.<br><br>In Southern California architects fees run from 5+% for commercial to 15+% for residential alterations.&nbsp;&nbsp;From this the architect allocates compensation to structural engineering, plumbing engineering, HVAC engineering, electrical...
  4. DavidA

    UBC 2000 Seismic Code

    Try the ICBO website <A HREF="http://www.icbo.org" TARGET="_new">www.icbo.org</A> for either the Handbook to the IBC Structural Provisions, or the 2000 International Building Code.<br><br>The 2000 IBC will be the new standard code across the entire US.
  5. DavidA

    Problem Working with Attributes

    The dialog box expects data to be entered in the sequence in which the attributes were defined.&nbsp;&nbsp;If this wasn't done carefully on definition it may be best to redefine the block. <p>David Allee, Architect<br><a href=mailto:darct@tfb.com>darct@tfb.com</a><br><a href= >...
  6. DavidA

    typical wood roof trusses

    You should connect your interior non-bearing partitions to the bottom chord with a slotted angle clip (Simpson's STC clips are available at local lumber yards). Allow about an inch between the top plate and the bottom chord. Verify the deflection with whoever does the truss calcs<br><br>There...
  7. DavidA

    design of slab on grade

    PCA is the Portland Cement Association.&nbsp;&nbsp;Their URL is<br><A HREF="http://www.portcement.org" TARGET="_new">www.portcement.org</A>. <p>David Allee, Architect<br><a href=mailto:darct@tfb.com>darct@tfb.com</a><br><a href= > </a><br>Professional affiliations include International...
  8. DavidA

    Structural Analysis and Design Software

    I am Looking for a truss calculation program using light gauge steel (american standards)members. I've tried to use the downloaded demo and the CD demo of SpaceGass and couldn't get either of them to run. <br> <br> I used to do these by hand in the 60's. In the late 70's I programed my own...

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