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  1. lexpatrie

    Beam Reinforcement Calculation

    Source: Stack exchange. Where the section changes, shear jumps. If this were a plate girder you'd be welding the top and bottom plates to the web to transfer that shear, it's no different than the case at hand, it's just the section is getting thicker in the middle which is atypical. If it...
  2. lexpatrie

    Ponding Load

    The what, 1996 LRFD for wood construction has a procedure for ponding on wood. ASCE 16 wasn't it?
  3. lexpatrie

    IEBC Allowable 5% Gravity Increase on Total Load or Load Type?

    As a side note, it looks like the actual text hasn't changed between 2018 and 2024. Here's the 2024 for reference, I notice the bit about current IBC in there now, I was working off brute recall. Source: 2018-2024 IEBC What I'm getting at is the basic question was about what the 5% applied...
  4. lexpatrie

    IEBC Allowable 5% Gravity Increase on Total Load or Load Type?

    I think that's thematically correct but potentially overkill. If it's over the 5% you're required to analyze it, isn't that the wording? That isn't exactly binding it to the new code, in terms of language? The one issue I could see is there have been a LOT of changes in punching shear in...
  5. lexpatrie

    Ponding Load

    Math checks out.
  6. lexpatrie

    Can a R/C moment frame ever go pass 1% interstory drift without collapsing (NLTHA)

    Non-linear time history analysis? Starting to feel like an FAQ for all the user-created acronyms is needed. My Captain Crunch decoder ring broke a while back as it was non-UV resistant plastic.
  7. lexpatrie

    Slideruleera.net Successor

    Good idea. I updated the FAQ to refer folks here. It may take a bit for approval to come through.
  8. lexpatrie

    Beam Reinforcement Calculation

    XR250, Yeah, that looks like the first edition, all I can find online as to traces is an arabic translation from 1981, so probably. Abebooks normally has this information but not for this book. Yeah, I know, not the question being asked, but.... Fundamentally this is a built-up shape. Since...
  9. lexpatrie

    Ponding Load

    Since the OP hasn't responded, I think they got what they wanted and I don't need to argue with you, Dave. The excerpt I posted did address your comment because you claimed there's a distinction between a blocked drain analysis and a ponding analysis, and intrinsic in the rain load case...
  10. lexpatrie

    Beam Reinforcement Calculation

    Has Koot gotten into this one yet? I haven't read the four pages yet.
  11. lexpatrie

    Slideruleera.net Successor

    I can modify the FAQ to suggest people contact you with files they find? or if you'd rather, I can just pull down the FAQ entry after you copy it, and you can post and curate it going forward.
  12. lexpatrie

    Anchoring scissor car hoist/lift

    Follow the manufacturer's installation instructions, i.e. use the proper tools which you may have to rent from somebody for the more esoteric anchors. Epoxy you want to properly brush out and blow out the holes, ensure that it's dry, and follow the mixing ratios, setting time, and so forth...
  13. lexpatrie

    How to create new FAQ

    Is there any way to SORT these, I have some fairly large sets of FAQs (i.e. in the AISC forum) and they are no longer sorting by the leading year in the FAQ entry (i.e. 1965 doesn't show up before 1970, and so forth).
  14. lexpatrie

    Explosion at fireworks storage facility in Northern California

    I'll just ignore tugboat. Hazardous storage in an older building? Water supply issue? No sprinklers because it's an older building and they weren't required then? Change to hazardous storage without permit/review? Given the nature of the storage I somehow doubt that deflagration venting would...
  15. lexpatrie

    Drifting Snow from Multi-level roofs

    Well, I mean, Michael writes the provisions for snow load in ASCE 7.....
  16. lexpatrie

    Ponding Load

    A blocked drain is inherent to a ponding check. So, No.
  17. lexpatrie

    Ponding Load

    I think your approach deviates from the design standard approach, but 2" of rain applied across the entire roof would be a lot more that what a "normal" ponding situation would create. There are points where the structure can't move downward (i.e. walls), so it is likely conservative. As this...
  18. lexpatrie

    IEBC Allowable 5% Gravity Increase on Total Load or Load Type?

    Uh, Reid Middleton is a company but the guy who submits a ton of code change proposals (or did) was like one guy "representing self" as I recall, and I've forgotten the name, it got a write error and has Phil Brazil in that spot now in my storage. Ok, maybe I got that partially correct, except...
  19. lexpatrie

    Slideruleera.net Successor

    I think the Archive was out last year due to a hack that nearly burned it to the ground. (It was definitely my last "active phase" on eng-tips). That's what I meant by "forever". If you have limited time, concentrate on the items that aren't on the archive, host those, and store (offline) the...
  20. lexpatrie

    Typical Details

    Copypasta, misuse of standard details, or failure to adapt as needed for the particular project or not knowing their limits is a training/staff/supervision/mentor/QA issue. If you grade your engineers on the "met budget" criteria, this encourages them to skip any extra thinking or added care, so...

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