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Recent content by phamENG

  1. phamENG

    Subdivision Work - Pricing

    These can be tricky. Most developers don't want to pay reuse fees, because they do add up. But, as you rightly point out, you're liable for the structural performance of each and every one of those houses. When it comes to multiple uses, I typically charge 100% for the first, 50% the...
  2. phamENG

    ChatGPT - Nice!

    Meh. I would still never cite Wikipedia. The sources cited in Wikipedia? Sure. But an encyclopedia isn't a source...it's a background. AI is similar (for now). It will digest information and spit it out again...hopefully in a usable format. But the good ones cite their sources for the...
  3. phamENG

    air in sidewalk

    As a structural engineer practicing in southern Virginia, I'll say that I've seen plenty of sidewalks spalled by inadequate air entrainment. Brand new library at my alma mater...sidewalks looked like trash within a year. Just meet the specs.
  4. phamENG

    air in sidewalk

    As with anything - it depends. If it's in South Florida, then you're probably fine. If it's in Minnesota, ice will win, even if the concrete has a compressive strength of 9000psi. Air entrainment creates little bubbles in the concrete that allows water in concrete to expand when it freezes...
  5. phamENG

    ChatGPT - Nice!

    I've been contemplating using it for reports. Feed in all my reports from the last several years to train it on my general style and tone (see if it works, anyway), and then feed in a list of bullet points and associated image files and see what it gives me. I have a project coming up in a...
  6. phamENG

    Index for 12 page calculations?

    I hope you moved it around on every page so they couldn't use Bluebeam's "apply to pages" markup feature ;)
  7. phamENG

    Masonry Stem Walls - commercial construction

    That detail is all about lateral loads from a portal frame built per braced walls. It does absolutely nothing to counter the rotation your concerned with. That has to be handled separately. In your case, you'll have a standard wood wall attached to the top of a cantilevered masonry wall...
  8. phamENG

    Best practice for connecting existing trusses and rafters to a proposed I-beam header.

    I try not to label things as "New" or "Proposed" on drawings, only existing. The implication is that if it's not labeled 'existing' it is new. That way, if I miss such a label, it's something the contractor doesn't have to buy rather than an omission that results in an extra charge. Also, I'm...
  9. phamENG

    Residential- Curved Stud Walls

    This architectural form is common around the world, and is often built from wood. So it can work. But it's not going to behave the same way as our typical, orthogonal structures. So, to prove that it will meet building code reliability standards, you're going to need to approach this...
  10. phamENG

    HUD Foundation Inspections

    Sorry - conversation split there. My comment about why dealing with escrow was aimed at the one offs that I have to deal with. Not going to bend over backward for those. In your case working with the realtor you have a business relationship it makes more sense (as long as you do have means to...
  11. phamENG

    Triangular CMU

    This is from the masonry society:
  12. phamENG

    Residential- Curved Stud Walls

    1. 0". Plywood is meant to be flat. If your plywood is thicker than 1/8" and curved any more than dead flat, it will need to be kerfed to get it to 'fold'. 2. I'm guessing you mean IRC Braced Walls? No. Those are for standard construction only. Curved walls wouldn't count. 3. No. Shear...
  13. phamENG

    HUD Foundation Inspections

    Yes, but then why deal with the escrow at all? XR250 has relationships with realtors. If you're doing a lot of these and it's running through the realtor and you have a good relationship, I can certainly see a clause like this making sense. But Joe Scmuckahomeowner? Not worth the hassle. At...
  14. phamENG

    HUD Foundation Inspections

    Oh, man. Is that all it takes to guarantee everyone pays on time? I've been doing it wrong all along!
  15. phamENG

    Windloads for a building in a building

    It's also in ASCE 7-22 Chapter 4 (Live Loads)

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