Metal Decking + Light Gage Framing Flashcards
standardized, shop-fabricated trusses.
Open-Web Steel Joists
webs of ____,
cords of ____.
linear members,
back-to-back steel angles.
Open-Web Steel Joists:
standard
K series
Open-Web Steel Joists:
K series span + depth
8-60’ span
8-30” depths (2” increments.)
Open-Web Steel Joists:
long span
LH series
Open-Web Steel Joists:
LH series span + depth
25-96’ span
18-48” depths (4” increments.)
Open-Web Steel Joists:
deep long span
DLH series
Open-Web Steel Joists:
DLH series span + depth
89-144’ span
52-96” depths (4” increments.)
composite joists
wood top and bottom cords, steel webs.
Open-Web Steel Joists:
standard designation:
depth, series designation, type of cord used.
ex. 36LH13,
36” deep, LH type, #13 cord type.
Metal decking is made from:
steel + aluminum
composite metal decking includes:
deformed to bind w concrete
steel members w gage 10-25:
Light-Gage Metal Framing
Light-Gage Metal Framing used @:
interior partitions,
ext bearing/nonbearing walls,
joists + rafters.
Light-Gage Metal Framing advantages:
noncombustible,
easy to cut/assemble,
no shrink/decay.
Light-Gage Metal Framing most commonly used:
@ int. partitions in noncombustible building.
spiral stairs typ column diameter:
4”
spiral stairs standard diameters:
3.5’–7’ in 6” increments.
___º treads are most common @ spiral stairs.
30º
expansion joints are available in two types:
lateral-only,
and lateral/vertical movement.
seismic expansion joints also available. (special engineering study req’d)
detailing brass + bronze:
large expanses of flat sheet stock,
min thickness:
10-gage. (0.1019in)
if patterned, can be less thick, bc pattern gives structure..
20-gage if laminated to particle board/backing.
