Cantilevered Canopy Connection Detail
Cantilevered Canopy Connection Detail
(OP)
I am working on a mixed-use building that has underground parking, retail space on the first floor, and two stories of lofts above. Precast framing is used for the garage and retail, and the lofts are wood framed. The front of the retail level will have storefront with cantilevered canopies along the majority of the length of the building. The attached image shows what the client would prefer do for the attachment of the canopies.
I do not like bolting through the brick veneer for several reasons. I typically try to avoid using brick veneer to resist structural loads. It seems like a bad idea to have the bolts cantilever past the brick veneer, I doubt the canopy manufacturer's standard connection would account for any bending stress in the bolts. Also, if the bolts were over tightened it seems that could cause issues for the veneer anchors. In my opinion it is a better detail to bolt the canopy directly to the steel structure supporting it. This could mean the steel tube is shifted left such that the face of the tube is flush with the face of brick above. Or perhaps there are stub tubes that penetrate the brick veneer at canopy connection points.
I would like to know if other engineers agree with my concerns, or perhaps I'm being overly critical of this connection detail. Any input would be appreciated.
I do not like bolting through the brick veneer for several reasons. I typically try to avoid using brick veneer to resist structural loads. It seems like a bad idea to have the bolts cantilever past the brick veneer, I doubt the canopy manufacturer's standard connection would account for any bending stress in the bolts. Also, if the bolts were over tightened it seems that could cause issues for the veneer anchors. In my opinion it is a better detail to bolt the canopy directly to the steel structure supporting it. This could mean the steel tube is shifted left such that the face of the tube is flush with the face of brick above. Or perhaps there are stub tubes that penetrate the brick veneer at canopy connection points.
I would like to know if other engineers agree with my concerns, or perhaps I'm being overly critical of this connection detail. Any input would be appreciated.






RE: Cantilevered Canopy Connection Detail
BA
RE: Cantilevered Canopy Connection Detail
I think it's going to be really tough to get that embed to work. How much brick is sitting on that ledge? Any opportunity for a kicker back into the building?
RE: Cantilevered Canopy Connection Detail
RE: Cantilevered Canopy Connection Detail
RE: Cantilevered Canopy Connection Detail
RE: Cantilevered Canopy Connection Detail
RE: Cantilevered Canopy Connection Detail
BA