Construction of Steel Deck Flashcards
What is the standard end lap at supports for a roof deck?
- 2”.
Which deck type can be used to provide the chase for electrical distribution?
- Cellular Deck.
The roof deck is responsible for _______?
- Acting alone to transfer horizontal and vertical loads into the building frame.
How much does roof decking weigh per square foot?
- 2-4 psf.
Which of the following is referred to as an “f-deck”.
- Intermidiate Rib.
What is the MINIMUM weight of a composite cellular deck?
- 4 PSF.
Which is “heavy duty” decking?
- 15/16” deep, 0.17 to040 thickness.
What is the standard weight for a bundle of decking shipped from the manufacturer?
- 4000 lbs.
What is the correct way to store metal decking on a jobsite?
- Bundles should be kept off the ground and one end elevated for drainage.
When erecting a metal deck, what is the minimum width for a working platform?
- 12” wide.
When placing steel decking, the worker should_____?
- kneel.
Roof decking should be able to support at least _______PSF?
- 30PSF
When fastening metal decking to strucural framing, what is the minimum end bearing?
- 1 1/2”.
All of the following are methods of attaching steel decking, EXCEPT. ________
- Adhesives.
What is the MINIMUM size screw used on steel decking.
- # 12s or 1/4”.
Which of the following is used for attaching steel decking?
- Special electric screw guns, preset pressure air tools, & powder actuated tools (all of the above).
At what thickness of metal decking are weld washers recommended?
- Less than 0.028” or 22 Gage.
When do you weld washers at side laps between supports?
- Never.
When welding joists, what percent of the weld is required around the perimeter?
- 75%
For roof decks, as long as no more than 2 webs are removed, what is the maximum penetration size without reinforcment?
- 6”.
What size thickness of metal plate should you use to patch a hold 13 inches in diameter in steel decking?
- .057 plates.
With roof decking, what is the maximum allowable penetration before an opening must be framed?
- 13”.
What is the maximum opening that can be placed in a steel deck with channel reinforcing on each side perpendicular to the deck?
- Maximum of 24”.
Minimum capacity to use floor deck as working platform?
- 50 psf.
