puddle welds and corrosion
puddle welds and corrosion
(OP)
the deck is 22 gage corrugated galvanized steel deck supported on galvanized steel tubes. the deck is connected to the support members with 5/8" puddle welds with whashers. the deck is near the bay (corrosive environment).
how is the weld protected against corrosion? (i.e. the are on the galvanized support member where the weld is, how can that area be protected ?)
thank you
how is the weld protected against corrosion? (i.e. the are on the galvanized support member where the weld is, how can that area be protected ?)
thank you
V2






RE: puddle welds and corrosion
RE: puddle welds and corrosion
V2
RE: puddle welds and corrosion
thank you
V2
RE: puddle welds and corrosion
RE: puddle welds and corrosion
1. Deck that is 22 gage, in my opinion, is too light to weld. I have designed many square miles of metal roofs. I do not use ant thing but type B deck and 20 gage (required or not). You should see a metal deck after sloppy welders are done with it. Washers will help; but welders do not like to use them and you almost have to be there all the time to ensure that they are being used.
2. I am a fan of mechanically fastened deck as well. If your uplift and diaphragm loads can be accommodated by TEK screws, use it. SDI manual and hand book, by Dr. Larry Luttrel, PhD, P.E. has very good shear tables for mechanically fastened steel deck.
I hope this helps.
Lutfi