Puddle and Seam Welding galvanized decking to structural steel

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We have to weld some 16 ga galvanized sheet steel with big square corrugations to structural steel I beams.  The material is on a horizontal plane and will be used to subsequently hold the cast in place concrete.Situation 1:  Seam WeldsSituation 2:  Puddle Welds*The Seam welds are to hold the seams together while the concrete is being placed.  They have been "temp" screwed with small Tek screws every now and then at the seams.The Puddle Welds are to secure the decking against blow off from the wind while the decking is being placed.  When all the 4000 sf of decking is fitted, they will rent some type of pin gun to place the structural fasteners to meet the shear transfer requirements.  The small breeze wind has already been seen trying to lift the material off the iron.  All the structural steel has been painted with one thick coat of black epoxy paint prior to placing the decking.The weld rod is said to be a 6022 and the machine is inverter style running on site power.  The 6022 should be here soon.Since these welds are for the 'convenience of the contractor', they will probably want the absolute minimum quantity.Questions:Settings:Will the settings for the seam and the sheet to I beam be similar?  Sequence:Am trying to figure out the sequence like do say ten seams, fall back do five sheets to the beams, go ahead and do ten more seams, fall back do ten sheets to the beams .... etc.   Figuring the seams should be well ahead of the attachment.  Or skip around the perimeter doing every fourth sheet, then then next time offset by two sheets and do every fourth one.  Thinking at the conclusion of the perimeter welding, the welds to the beams should be one per each side of the seam to keep the seam together.  At other beams in the center of the area, considerably less.Thanks kindly
Reply:I see 6022 is to be used with steel with "moderate" surface contaminates". I consider zinc coatings to be severe surface contamination. Will that be a problem?Twas me I would pilot punch or spot drill all of the spot welds prior to welding to establish a clean arc in the beam and plug weld. But that is me.  Let us know how it goes.Weld like a "WELDOR", not a wel-"DERR" MillerDynasty700DX,Dynasty350DX4ea,Dynasty200DX,Li  ncolnSW200-2ea.,MillerMatic350P,MillerMatic200w/spoolgun,MKCobraMig260,Lincoln SP-170T,PlasmaCam/Hypertherm1250,HFProTig2ea,MigMax1ea.
Reply:I think you should ask the contractor to get the engineer to put something very specific together to cover your ascz. It is CA after all. FL wasn't much different due to the uplift requirements post 1992. No engineer specs. No arc.
Reply:Tape stinger to a stick DC - 155 amps poke it down pull it up should be 3 tacks on 4 ft centers see deck drawings for layout , your feet hold down deck should do 4 tacks a min , fast is the answer.
Reply:I have always had the structural engineer or the decking supplier make a recommendation for deck fastening. Often times it will be on the shop drawings from the supplier. Who is the deck supplier? I work a lot with Vulcraft/Nucor or New Millenium and they have always given me a puddle weld layout pattern for fastening the deck.
Reply:6022 is decking rod, tape your stinger to a broom handle to save your back, usually every 2 feet give a good 1" puddle to the beam. The last job I did used stainless deching and we shot it down with a Hilti gun........bang!Disclaimer; "I am just an a$$hole welder, don't take it personally ."
Reply:Did anyone else notice the word "galvanized"?Isn't zinc something us welders like to *not* vaporize?Be wary of The Numbers: Figures don't lie,. but liars can figure.Welders:2008 Lincoln 140 GMAW&FCAW2012 HF 165 'toy' GTAW&SMAW1970's Cobbled together O/A
Reply:Tozzi knows too !  Two of us tacked and production welded 10000 sf of deck with 3 guys ahead of us laying out and throwing down the deck in one day !!! 25 lbs of rod used . Don't worry about paint or galv. hold your breath .
Reply:As of Oct 2012,  All 50 series roof or floor decking must be welded with a LoHydrogen rod.  Any bar joist taller than 22" must be welded with LoHydrogen rod.  Any bar joist with a top flange thickness of 1/4" or greater must be welded with LoHydrogen rod.  6022 is not legal unless bar joist is less than 22" and  floor pan is 36 series steel.  Chances are you should be using 7018 or any rod that ends in 5, 6, or 8.  Be carefull,  The rules are changing.More is never enough.