Floor Deck and Beam Identification
Floor Deck and Beam Identification
(OP)
Greetings
I was asked to find the load capacity of an existing mezzanine within an industrial shop building that was originally constructed in ~1973. There is essentially a room constructed of 8" concrete (10'-0" tall, 8'-0" floor to u/s joist) block walls within this warehouse that has 24"deep joists @ 4'-0" o.c. spanning 28'-8" across from wall to wall. I believe the beams are Armco 24J11 which I have determined from site measurements of the top and bottom chords and referenced to their 1974 catalog on slideruleera.net.
My problem is that I cant identify the steel decking which I believe will be the limiting element in the load capacity. The decking spans the 4'-0" between the joists and is 2'-0" from rib to rib profile. From what I can see on site there is no concrete on this deck, only a plywood floor that is somehow screwed on top. I have approximated that there is a 1.5" space that is occupied by this unknown decking, and I assume some sort of wood strapping to secure the plywood floor on top.
I have attached a photo shot from within the ceiling plenum. Any information would be much appreciated!
Cheers
I was asked to find the load capacity of an existing mezzanine within an industrial shop building that was originally constructed in ~1973. There is essentially a room constructed of 8" concrete (10'-0" tall, 8'-0" floor to u/s joist) block walls within this warehouse that has 24"deep joists @ 4'-0" o.c. spanning 28'-8" across from wall to wall. I believe the beams are Armco 24J11 which I have determined from site measurements of the top and bottom chords and referenced to their 1974 catalog on slideruleera.net.
My problem is that I cant identify the steel decking which I believe will be the limiting element in the load capacity. The decking spans the 4'-0" between the joists and is 2'-0" from rib to rib profile. From what I can see on site there is no concrete on this deck, only a plywood floor that is somehow screwed on top. I have approximated that there is a 1.5" space that is occupied by this unknown decking, and I assume some sort of wood strapping to secure the plywood floor on top.
I have attached a photo shot from within the ceiling plenum. Any information would be much appreciated!
Cheers






RE: Floor Deck and Beam Identification
Kind of looks like bulb tees spanning between the joists. Could be Tectum or some other similar product.
RE: Floor Deck and Beam Identification
RE: Floor Deck and Beam Identification
Anything you learn here would be purely speculative and insufficient to ascertain deck capacity.
BA
RE: Floor Deck and Beam Identification
I had spent some time today looking through old steel decking catalogs to try and locate a manufacturer or similar profile with no success. The steel is pretty thin gauge, similar to siding.
RE: Floor Deck and Beam Identification
RE: Floor Deck and Beam Identification
https://www.google.ca/search?q=standing+seam+deck&...
BA