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Metal deck shear transfer system

Metal deck shear transfer system

Metal deck shear transfer system

(OP)
I am working on a industrial building. Elevated concrete floor on a composite metal deck. This is a electrical floor with some opening in the floor.

Welding between metal deck and steel beam depends upon shear force transfer through deck.

I am confused about the shear force.
Q.1
 IS it only that storey or it should be accumlative of all stories above.
Q2.
I have a stadd model of this building. i did not model concrete floor, instead i added horizontal bracing in my model to achieve diaphragm action.
can I claculate storey shear from stadd model.
Q3
Beams along column line/bracing line has axial forces.
can I take this my shear transfer through metal deck.
I appreciate all of yours time and efforts to help me out.
 

RE: Metal deck shear transfer system

Regarding #1:  Normally it's only for that particular floor that you have to design the connection for, however, that depends on the detailing too, plus the lateral system type used.

I'll leave 2 and 3 to others.  I have to weed wack now.

Mike McCann
MMC Engineering

RE: Metal deck shear transfer system

1.)  As noted above, it is typically on that floor.

2.)  I'm not sure exactly how STAAD works, but unless it calcs your lateral loads for you (like RAM does), then you have to input the story shears.  You should know which is the case.

3.)  You can take it through the metal deck into the beams into the lateral system, but you have to make sure the puddle welds are ok.  I would consider adding studs to some beams that you designate as "collectors" that are in line with, and adjacent to, the lateral frames.

 

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