Steel Joist 20 H7
Steel Joist 20 H7
(OP)
We are evaluating a series of cracks that has been developing during the last month on a lightweigth mezzanine structure. The structure was built on 1985 and five years ago a series of cracks developed on the 2.5 thin concrete slab. The construction drawings describes the joist elements as 20 H7 supporting a 2.5 inches concrete slab and a wire mesh reinforcemnt. The mezzanine slab was rated at that time capable to resit live loads up to 125 psf.
Where can I find the mechanical properties, load tables or any information on that specific type of steel joist.
Where can I find the mechanical properties, load tables or any information on that specific type of steel joist.





RE: Steel Joist 20 H7
75 YEAR MANUAL 1928 - 2003
http://www.steeljoist.org/publications/
RE: Steel Joist 20 H7
SJI Publications
RE: Steel Joist 20 H7
RE: Steel Joist 20 H7
RE: Steel Joist 20 H7
RE: Steel Joist 20 H7
20H7: Nominal Depth = 20 in
Resist Moment = 499,000 in-lbs
Max End Reaction = 5400 lbs
Approx WT = 10.7 lbs
Maxmum Tensile Stress= 30,000 psi
If you have the span, I can give you the allowable loads.
RE: Steel Joist 20 H7