I question the ability of the 2 or 3 10dx1-1/2" nails near the end of the beam to meet the requirements of AISC J10.7. But you have the whole picture - if you can conclude that it does the job, then great.
I can second this one. House was settling, causing minor annoyances - sticking doors, really small cracks, etc. But the house was moving close to uniform.
The underpinned one half of the house but left the other half on spread footings. A 2 month drought caused the clays under the house and...
Yes. Even if not jacking the foundations to get the house back to level, the installation process will usually apply an upward force on the existing structure. Load will transfer from the existing footing to the underpinning. The amount will depend on the type of underpinning as some use the...
Yeah, it's likely too late. By the time the concrete has hardened enough to remove forms from a wall, you're well past the initial shrinkage phase and the concrete is already cracking.
I don't think you would in this case, dik. The existing unit already has wall. The intent is to keep the adjacent unit from burning and prevent progressive collapse across units. The free standing masonry wall that has to stay up is a thing when it's the only wall between units. But if it...
Best luck I've had is talking with a local truss shop. Depends how busy they are and how much competition is around, but I've had luck getting preliminary truss designs with a promise to specify them as the manufacturer. It's even easier when the GC is picked early and they have a go-to...
When I first started on my own, I found myself in the opposite position quite frequently. I was called in after these companies came with their sales pitch. Always needed helical piers, house was always about to fall down. Usually it was a sagging floor joist or a structural bearing failure...
I also wouldn't really call "booths" fixed seating. They can be removed, moved around, replaced with tables, etc.
If anything, going with the 60psf live load for "fixed seating" would probably require the addition of some sort of "booth load" like offices have for cubicles. That would put...
But...has it?
Is it engineering judgement that has been taken out, or is it that the uncertainty that comes from a lack of data and experience? Because let's face it - does any one engineer, no matter how long they've been practicing, have the breadth of knowledge or seen enough of what can...
At least your code has a limit. Mine is self imposed - most of the houses I design are also at the beach and are owned by lawyers.
Here's a clip from the commentary from ASCE 7-16 (defines loading for structures):
Here's deflection limits from the IBC:
US codes are silent on wind drift serviceability. Deflection of walls and beam/floors/roofs under wind loads are based roughly on a 10 year MRI.
For lateral drift, I usually do 10 year MRI with H/500 as my target, but willing to go down to H/400 in some circumstances. I also try to limit...
I remember a big freak out at my last firm when DoD was starting to enforce strict security rules for anyone handling FOUO and greater documents. We did, and the cost to get the version of sharepoint/one drive that was compliant was freakishly expensive. Don't recall the details, and I left...
