Ah okay, I am not so familiar with FRP. This is actually a URM wall, my thinking was to have a brace frame. Collect the seismic load with a steel ledger, but like you said maybe the URM fails if I do not do this correctly. I do not know if should have some steel X bracing anchors to the URM to...
I checked the existing wall using the California existing building code section A112, it did not work. If i would introduce a brace frame, this would have to be a special brace frame because it is seismic category D, or since its an existing building, can I use an ordinary brace frame?
Also, I...
Hello,
We are creating an opening on a wall. Alterations no the wall are greater than 10%. What are some retrofit options. This building is URM with wood framing. Two story building, the alterations (openings) are going to be done at the first floor. it is about a 60'x80' building.
JO
So for lateral, I have to check that the wall opening doesnt affect the capacity of the wall, I have read something about that it cannot affect the DCR for more than 10%.
Also check gravity and out of plane? This will be taken by the steel frame?
Also, what are wind columns mentioned above?
JO
2 story building, each story is 12' high, the opening at second floor are 9' and 3', 8 ft high. The total length will of the wall is about 30'.
The channel above the opening is to take care of the gravity loads correct, essentially a lintel? is that all i need? how about to analyze this wall...
Hello all,
If they are planning to make an opening in a cmu wall what is the retrofit design approach for this? Can anyone give me an idea on how I should approach this design? I am quite lost.
JO
Hello,
Please see attachment. This is the best idea for the connection. It does have a big eccentricity but the connection works. But also, is it possible to cope an HSS beam like usually done for W beams.
Thank...