4 Story Building w/ Metal Deck on Wood Frame
4 Story Building w/ Metal Deck on Wood Frame
(OP)
Has anyone ever designed concrete on metal decks bearing on wood frame construction. The architect seems to think its OK?? Any tips will be greatly appreciated. Thanks.






RE: 4 Story Building w/ Metal Deck on Wood Frame
RE: 4 Story Building w/ Metal Deck on Wood Frame
RE: 4 Story Building w/ Metal Deck on Wood Frame
I do not like to do it. but if it needs to be, I would consider a glulam beam that you couls camber for the dead load of the concrete.
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: 4 Story Building w/ Metal Deck on Wood Frame
RE: 4 Story Building w/ Metal Deck on Wood Frame
As a structural engineer we are to take the loads, review the code, design the members, and then report that its ok, If its not ok, then suggest a different material to the Arch.
RE: 4 Story Building w/ Metal Deck on Wood Frame
RE: 4 Story Building w/ Metal Deck on Wood Frame
BA
RE: 4 Story Building w/ Metal Deck on Wood Frame
I understand your situation. It's something you haven't necessarily seen before so you don't know if there is some obscure part of the code that prohibits this form of construction. To tell you the truth... I don't know if there is. Please inform us if you find something.
Something you might be concerned with...... how is the construction process going to go? In a normal platform construction you would construct your walls, floor joists, decking and then begin the process again until you reached the top. In this instance you would have to construct the walls, put down the decking, pour concrete, wait for it to harden and then start over again. It almost appears as if you have multiple trades (I'm not sure the wood guys would do the decking and pour the concrete). Seems like a great way to slow the construction process.
local bending of the top plates may be a concern as well. Normally the joists line up with the studs eliminating plate bending..... you may have to check that here.
Good luck.
RE: 4 Story Building w/ Metal Deck on Wood Frame
RE: 4 Story Building w/ Metal Deck on Wood Frame
RE: 4 Story Building w/ Metal Deck on Wood Frame
RE: 4 Story Building w/ Metal Deck on Wood Frame
"We shape our buildings, thereafter they shape us." -WSC
RE: 4 Story Building w/ Metal Deck on Wood Frame
I see fire issue and slow construction but say the beams/posts met/surpassed the fire requirements, are there other concerns?
EIT
www.HowToEngineer.com
RE: 4 Story Building w/ Metal Deck on Wood Frame
RE: 4 Story Building w/ Metal Deck on Wood Frame
Kind of a can of worms you might say...
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: 4 Story Building w/ Metal Deck on Wood Frame
1) make sure you check bearing.
2) Limit thermal bridging to prevent condensation
3) use P.T. wood in contact with the floor deck.
I think the code is usually clear that any wood in contact with concrete or masonry need to be P.T. Note that sometimes a P.T. wood plate is bigger than it's cousin, the non treated stud because it is still wet or is stored outside. This sometimes causes issues...
______________
MAP
RE: 4 Story Building w/ Metal Deck on Wood Frame
RE: 4 Story Building w/ Metal Deck on Wood Frame
EIT
www.HowToEngineer.com
RE: 4 Story Building w/ Metal Deck on Wood Frame
RE: 4 Story Building w/ Metal Deck on Wood Frame
RE: 4 Story Building w/ Metal Deck on Wood Frame
They are essentially two-way gluelam "slabs".
In Russia building design you!