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  1. lexpatrie

    Untopped Precast Plank Diaphragms [ Resurrected from 2018 ]

    https://www.eng-tips.com/threads/untopped-precast-plank-diaphragms.435530/ Anyway, to supplement that discussion, the roof may have a UL rating at which point the keyway may need something in there, possibly concrete. Alternately insulation might be stuffed in that area. I mention this because...
  2. lexpatrie

    FAQ sorting

    Any idea - these no longer sort in any meaningful way, it's all a jumble, it's intended to use the year to sort by date so it's in chronological order. https://www.eng-tips.com/forums/337/faqs/?page=2
  3. lexpatrie

    subscripts/superscripts

    Have we lost this ability?
  4. lexpatrie

    Edited FAQ deletes itself?

    I edited three FAQs over in the Wood design forum, all three disappeared - one involved fixing a " in the title, the other:https://www.eng-tips.com/forums/337/faqs/2886 and a third one I changed the title to give the authors (one is Vogt). All three disappeared. Do edited FAQs go through...
  5. lexpatrie

    Poured Gypsum Roof Deck (Diaphragm values)

    Ok, so a bit of a resurrection. First off, this seems to come up fairly often (I guess "often" is a relative term, as I know have my second one). On the first one, being it was a storm damage situation, I wasn't on the hook for actual calcs using generally accepted principles of mechanics and...
  6. lexpatrie

    removing "bad" FAQ entries

    We have a few in the structural engineering general discussion that are old users posting questions nobody was able to reply to. I can point you at them if anybody official is interested. The one has to do with some Etabs error and the other is one of those circuitous "I'm a young engineer..."...
  7. lexpatrie

    FAQs are kind of gone

    Looks like a large number of the FAQs I created are gone with the new site/forum backend. I won't be rebuilding them. Cheers. I'll probably drop off activity here, if not cease, too. Considering. It's been fun, though. I was really intending that to be something of use to more than just me...
  8. lexpatrie

    Wood Construction Calcs

    Any suggested topics for wood construction calcs (and NO, PLEASE, Don't say Cross Laminated Timber). I mea real dimensional wood framing. LVL, LSL, PCL, glulam. Like the stuff that grows out of the ground they build residential houses and apartments out of. not the cool new stuff that's got a...
  9. lexpatrie

    ASCE 7-22 component and cladding - no tables?

    Am I missing something, the latest iteration of ASCE 7 doesn't have the old component and cladding tables?
  10. lexpatrie

    CMU - Bond beam reinforcement minimums?

    Looking at a proposed detail from a contractor, it's a below grade basement wall 12" with a bond beam more-or-less at the top, they have (2) #4 rebar. My typical detail shows (2) #5. Is there a minimum reinforcement ratio that's based on or is it just "we feel like it" engineering detail? Is...
  11. lexpatrie

    CISC Computer program circa 1988?? (Canadian Steel Design)

    Does anybody know anything about this little nebulous comment in Supermarket Roof Collapse in Burnaby, British Columbia, Canada, Jones and Nathan, 1990? Is that a program that's from CISC or is that a program that's provided by them? Anybody know? Is this the precursor to SODA?
  12. lexpatrie

    A Paradigm-changing Framework for Reliability-based Analysis and Design of Concrete Structures

    This could use some daylight - Synopsis - when the model is 1/1000 of the eventual design this is potentially dangerous. A Paradigm-changing Framework for Reliability-based Analysis and Design of Concrete Structures: Jia-Liang Le Feels a bit like a repeat of the Tacoma Narrows bridge design.
  13. lexpatrie

    Reinforcing existing wood joist

    I have a 15' span 2x10 from 1930s. There's been a roof opening cut to accomodate an HVAC duct, 30" x 30". The joists are 16" o.c. with wood plank substrate on the top side. This opening has cut two joists each side of the opening and is now supported by face mount hangers with new framing...
  14. lexpatrie

    Steel Deck Institute Position Papers

    Anybody happen to have the one on fiberboard? I tried Archive.org but it doesn't have it, but they have a list of them. The one from June 2012 is of interest to me. https://web.archive.org/web/20121129103732/http://www.sdi.org:80/states.htm These seem to all have disappeared from the SDI...
  15. lexpatrie

    Cb and AISC Beam buckling revisited - [Steel design and Stability]

    thread507-459248 I got a little sidetracked into this thread.... I was actually scanning to see if anybody mentioned the Zuraski paper in that discussion (Zuraski, discussion of Cb from Engineering Journal. I didn't find it. Oh, well. I think I read it years ago, but don't seem to have a paper...
  16. lexpatrie

    Unit weight of Raw Sewage (ACI 350)

    Is the unit weight of raw sewage no longer in the design standard (ACI 350)? I have a 1989 photocopy and there's a section on live loads 2.3.2 that gives unit weights, I can't find this provision in, say, 2001.
  17. lexpatrie

    Raised Rafter (rafter tie) analysis

    thread507-470116 So there's some links to files that, naturally, no longer work. Is anyone around with these files still? BAretired? Further, https://www.eng-tips.com/viewthread.cfm?qid=457041 Arpasevan had a nice calculation I wonder if they are around and would share? Regards, Brian
  18. lexpatrie

    Durst equation

    thread507-315601 I'm afraid you might have to derive the curve, but it looks like there is a curve fit, and based on the coincidental date of 1960 and the match to the commentary in ASCE 7, this might be enough information to produce the Durst curve of your own...

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