Hey,
I'm working on a residential project where we will have 4" of rock/mortar on the outside face of concrete/CMU walls. One wall in particular will be CMU and ~12' tall.
I'm sure we need some kind of seismic tieback to the CMU for the rock face but I'm not aware of any systems like there are...
In theory they should have been installed as slip critical. In theory. I assume that if it was installed properly then the web blowout on the end of the beam is not really a governing load case (unless and until the bolt slips)?
FYI, this beam is only spanning about 10' to the next support and...
So looking at Programming's calcs and the AISC manual, I think that the bolt tearout strength should be the sum of the bolt tearout capacities, seems like the calculations only take into account 1 bolt. Multiplying by two obviously helps. If I add back the 1/4" used conservatively for overruns...
Very helpful, thanks @programmingPE. I will look into this limit state. Seems like if it is controlling, I can have them weld a vertical plate to the beam web to prevent tearout. Should help with some of the unsightliness as well.
Tough to accept but dismantling what's there I'm not sure is an option, unless it doesn't work. From what I'm seeing, even in the white papers, the connection should work.
All the steel should have thread rods and nuts which connect the wood plates to the steel members btw, not really an issue...
I have a project where a contractor did not install a beam and shear plate as noted in the plans. Instead of a shingle shear plate with three bolts attached near a support beam, the beam is supported by double shear plates with two bolts, and the beam is about 6" off of where the support beam is...
