Composite Metal Deck (Fastening)

[palk7 EIT]

Hi,

To consider as a composite deck slab (1.5"x18GA. metal deck with Normal weight concrete topping, total slab depth = 4.5") and use the composite deck slab load table to determine the allowable superimposed loads.

The connection of the metal deck to the supporting beam underneath, should it be traditional headed studs, or is it ok to have Hilti Powder actuated fasteners as the connection system and still consider the deck to be a composite deck?

Thank you

 

[JAE]

The manufactured ripples in the deck itself make it a "composite deck" with the concrete placed on top. This is for composite action of the deck-slab spanning between the beams.

The headed studs provide a mechanism to create a composite deck system - making the beams and deck act compositely - for the beam spans.

Two different things.

Little power driven fasteners don't do anything for the beam-slab system.

 

[palk7 EIT]

Thank you JAE, for the connection between the metal deck to the supporting beam is it ok to consider the Headed studs welded as the attachment and get rid of the powder actuated fasteners ? This makes the beam and deck to act compositely as well