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  • Users: KootK
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  1. KootK

    How to fix this?

    Getting downvoted on ET would be way more fun if I could earn badges for it on Strava. "In the last 90 days, you've earned the most anonymous disrespect of any structural engineer between the ages of 40 & 55! Keep up the lousy work!"
  2. KootK

    How to fix this?

    Sweet, it's high time that I had my own troll. I shall name it Trollop, feed it bougie vegan pet food, and crochet it a little sweater. I don't mind the trolling so long as it stays with me really. I'm far too enamored with the sound of own voice for it to slow me down any. But it would...
  3. KootK

    Trimmer bars for large slab openings

    In general, and particularly at a high demand location like this, it's prudent to think of this as what it primarily is: an offset lap splice between the trimmer bars and the discontinued rebar in front of and behind the opening. Envisaged this way, I suspect that you'll be able to answer most...
  4. KootK

    Birdsmouth I-Joist Cut

    Tough one. With the roof already in place, it will be tough to argue that there is not significant DL travelling through that undesirable load path no matter what you do. Conceptually, you might: 1) Get rid of the plywood. 2) Install some 2X outlooker things that get moment connected to the...
  5. KootK

    ACI 318- 19: Does ACI specify a minimum edge distance for a punching shear perimeter to be effective?

    That is interesting, thanks for sharing that tidbit. Are the CRSI pilecaps that don't meet 4d also taking the full perimeter for punching shear?
  6. KootK

    AISC 358 Endplate connection with RBS.

    Speaking only to what is rational in my mind, I would think that you could: 1) Design the RBS as one normally would. 2) Design the end plate connection using over strength / capacity design principles to force yielding into the RBS. As you know, however, just doing what feels rational does...
  7. KootK

    ACI 318- 19: Does ACI specify a minimum edge distance for a punching shear perimeter to be effective?

    Agreed. Unless you can scare up something that specifically says otherwise, I'd go with 4d. It might also be worth checking out how software is treating this. I don't love using that as "definitive" but, at the same time, those folks have a significant interest in getting it right. Just...
  8. KootK

    ACI 318- 19: Does ACI specify a minimum edge distance for a punching shear perimeter to be effective?

    I took a quick look and couldn't find anything definitive fast enough. The language applied to openings kind of suggests that openings and free edges are treated the same. So 4d perhaps.
  9. KootK

    ACI 318- 19: Does ACI specify a minimum edge distance for a punching shear perimeter to be effective?

    They certainly have in the past and I'd be astonished if they don't still. My recollection is 5h.
  10. KootK

    Evaluating the stability of a single I beam

    Yes, that should definitely work for LTB. In spades. I'm sure that it is adequate. Obviously, the concrete needs to not fall apart under any of the other loads imposed upon it but that shouldn't be a big deal. Make sure that the concrete restrains the beam on both sides. An "edge"...
  11. KootK

    Sole proprietor as engineer or business man.

    I am a sole proprietor. I would be flattered to be called a businessman. My brother is a former accountant and a businessman in the truest sense of the word. And he has a take on this that I find convincing. He says that I do not really have a "business" even though I am legally...
  12. KootK

    How to fix this?

    Given that we're talking about less than 500 lbs in a highly redundant light frame system, what do you feel is the probability of a dangerous collapse here. What's your version of my 1:50,000? What are some examples from your own work where contractors have suffered significant financial...
  13. KootK

    How to fix this?

    Rephrased more optimistically: allow them to avoid suffering undue reputational damage as a result of having made an error that an experienced structural engineer will recognize as having no meaningful consequences. I've no doubt that it does occasionally result in a compounding effect of more...
  14. KootK

    How to fix this?

    I do not feel that it empowers clients to do shoddy work in any meaningful sense. Rather, I accept that everyone makes mistakes and I only approve errors that I feel deserve to be approved based on technical merit which is, often, just my technical judgment. This mitigates business risk for my...
  15. KootK

    How to fix this?

    I doubt this actually needs saying but I'll say it anyhow for the sake of completeness. I won't take any risk, no matter how small, if it is not balanced by some manner of reward. That reward might be money. That reward might be influence. That reward might just be a good dopamine hit. But...
  16. KootK

    How to fix this?

    Exactly that. I would argue that the ASCE guidance on load testing also has a fair bit of "arbitrary" built into it. Guides like that are put together mostly by committees of other engineer using their judgments. Do those guys and gals have better judgment than I do? Surely. Does a...
  17. KootK

    How to fix this?

    ...younger that I glossed over this entirely. I didn't see it until later in my career when my responsibilities grew and the potential for frustration increased. In this respect, I'd almost entertain turning Mrs. KootK into someone with *shudder* a humanities degree??? That's probably going...
  18. KootK

    Ridge Beam Moment

    Dude, we are so meeting up for beer / coffee. I can even provide ET references to attest to my being a decent person to spend an hour with. I've had the privilege of breaking bread with both @jayrod12 and @BAretired. Contrary to what you might suspect, I won't just argue with you about stuff...
  19. KootK

    Ridge Beam Moment

    Yesir. Born in Trail (not on one). Grew up in Cranbrook. Now residing in Calgary, the Gotham City-esque metropolis to which my family would travel for new school clothing each Labour Day weekend. My dad was kinda flaky in his youth so we moved around a lot.
  20. KootK

    Ridge Beam Moment

    I also say yes.

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