All we have to do is get them to build a fully air sealed subfloor
Then we can assume that the air will behave like an incompressible fluid as it cannot escape and thus our shear capacity will go through the roof....
Theoretically looks fine but seems like a sitation for a 4x4 instead?
The 2x6 is going to look like shit in a year or two after some sun gets onto it
And, as JAE said, second order effects will kick in as it moves with the sun - I can imagine you'll get significant sag in the beam above as the...
Normally the serviceability condition (in my world anyway) would be done to check whether the concrete section cracks under daily loading
The goal of this is to use the full concrete section properties for stiffness
In this case, there is a triangular stress-strain distribution above and below...
A picture would tell a thousand words here. If you've got a crack travelling 3 storys down a brick building and into a foundation then I would be very very careful with getting involved and making sure you were certain of what was going on before speccing a repair
Are you sure that the issue...
I don't really understand your issue? Are you worried about the purlins sliding down the truss top chord?
I would never account for friction in such a case.
Surely by the time you sort your uplift fixing it will resolve the sliding issue easily
I would normally treat that detail as pinned so you'd have a simply supported beam between the post and the ledger
However, the devil is in the detail with this
You are presumably putting this ledger up against your cladding and bolting through which:
1) potentially compromises your...
Your perspective is off. It is not "punishment". They had control of their actions. They did it wrong. We do not have to accept it and I would not be putting my name against that workmanship. They had their choices, and we have ours. Evidently you and I would make different choices in this...
For one thing, you and I and everyone on this forum knows that, if this is how they build a joist hanger, the rest of the work will be equally shoddy, especially once you let them off the hook with this
In my experience, if you give an inch, the contractor takes a mile
You compromise to help...
I just don't think load testing is the right solution for this problem
The contractor is in breach of contract presumably (as this will not be an acceptable construction in any drawings or specification)
It is clearly not what is drawn and is less reliable than the original design even if it...
Contractors are professionals who are paid good money to do things properly and as per the plans
We are not here to find ways to justify their shit construction
These problems are usually best solved by telling the contractor to pull it down and do it again properly
At worst, you provide a solid...
More or less the same I'm sure
In my software, SpaceGass, I can get zero moment nodes easily enough but it's all done via 'making the end of each member not transfer any moment' to use your lingo
However, if I make all members at one node 'not transfer' moment then it will throw a hissy fit and...
I'm baffled by all the engineers finding ways to defend this shit house construction (shit house is both a general slang for something really shit, and a literal description of the construction of this house)
That was a depressing way to start the day. I can't wait for someone to print off some plans for $500, tell me they want my signature, then get pissed off when I try to charge them $3000 to redesign and draw the first round of crap it spits out.
Then in 6 months they fix all the errors and I'm...
I've done a few pole bars, they're not too bad
Never one with attic trusses though
Agreed with everyone else: I'm sure the contractor saying "it's never been an issue before" has no bearing on actual design calculations, code-intended FOS, and doesn't relate to a building that experiences a...
We use it. My boss has a 360 GoPro so he takes overall shots with it then does detail shots with his phone camera
They're pretty good for getting context when you're writing your reports later
I have no experience in that myself, but here is a paper I came across once that may be relevant
https://www.sciencedirect.com/science/article/abs/pii/S026611440400024X
My favourite one is architects blatantly not designing to the client's budget
Either by throwing in way too many expensive touches which then disappoint the client later, or by spending all the 'nice to have budget' on one feature that has disproportionate cost implications
Bonus points for...
