Wooden Joists Placed Directly on Steel I-Beam
Wooden Joists Placed Directly on Steel I-Beam
(OP)
Hi to all
Due to space restrictions, is it possible to place the wooden joists directly on an I-Beam without having any wood nailer between the wooden joists and the I-beam, it is noted here that at the end of the joists there is a 2 1.3E LVL's (i.e. the LVL's are running along the I-beam) ... and to restrict the I-Beam from lateral movement an angle is suggested to be welded on the flanges of the I-beam and have a bolt fasten to the LVL's...
Is there any structural problem with that?
Due to space restrictions, is it possible to place the wooden joists directly on an I-Beam without having any wood nailer between the wooden joists and the I-beam, it is noted here that at the end of the joists there is a 2 1.3E LVL's (i.e. the LVL's are running along the I-beam) ... and to restrict the I-Beam from lateral movement an angle is suggested to be welded on the flanges of the I-beam and have a bolt fasten to the LVL's...
Is there any structural problem with that?






RE: Wooden Joists Placed Directly on Steel I-Beam
BA
RE: Wooden Joists Placed Directly on Steel I-Beam
RE: Wooden Joists Placed Directly on Steel I-Beam
RE: Wooden Joists Placed Directly on Steel I-Beam
Garth Dreger PE - AZ Phoenix area
As EOR's we should take the responsibility to design our structures to support the components we allow in our design per that industry standards.
RE: Wooden Joists Placed Directly on Steel I-Beam
RE: Wooden Joists Placed Directly on Steel I-Beam
RE: Wooden Joists Placed Directly on Steel I-Beam
RE: Wooden Joists Placed Directly on Steel I-Beam
Ever tried driving nails into a steel beam?
RE: Wooden Joists Placed Directly on Steel I-Beam
RE: Wooden Joists Placed Directly on Steel I-Beam
From what i read in your comments (i mean all of you) and from what i was researching I apploaded a sketch that explains what are my intentions and what problems i am facing here:
http://files.engineering.com/getfile.aspx?folder=0...
1.The steel beam is the minimum size that can be used due to deflection...and the client did not like the idea to go with an alternative steel beam since it will result in a wider beam.
2. There is a series of 4ply- 2"X12" pressure treated to form the balconies. And below the I-beam there is the balcomny door for the floor below.. sorry (ToadJones) there is no room to play here.
My solution from what i have researched today and to what i was reading on your replies to the thread are
A. Additing a 2"x4" Scabber to help the framer in aligning his 11 7/8" deep floor joists.
B. Adding a steel angle which can be welded on the flanges of the beam, and having the vertical long leg bolted with the 2 LVL's...
From A and B I guess i will be satisfying the minimum requirements for connections.
(shobroco) do you think my detail will still make the floor squeak?
(hokie66)& (woodman88) what is your opinion about the detail?
RE: Wooden Joists Placed Directly on Steel I-Beam
RE: Wooden Joists Placed Directly on Steel I-Beam
The verticle angle is placed to the side of the joist and the horizontal leg is faced away from the joist being nailed to it, so there is no notching required.
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: Wooden Joists Placed Directly on Steel I-Beam
RE: Wooden Joists Placed Directly on Steel I-Beam
The angle connected to the top of beam is discontinuous, right? It is connected to two LVL members, one of which is continuous and the other fitted between joists.
I don't think we are all seeing the same picture here.
BA
RE: Wooden Joists Placed Directly on Steel I-Beam
RE: Wooden Joists Placed Directly on Steel I-Beam
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: Wooden Joists Placed Directly on Steel I-Beam
RE: Wooden Joists Placed Directly on Steel I-Beam
Why not put the stl. beam up in the same depth as the I jsts.? Put 2-2x10's or 2x12's inside the web (padding) and use std. I jst. hangers to this padding to support the fl. jsts. Trim the rim board, in height, to fit btwn. the two outer flanges so it has its continuity and put a little padding behind it, to the beam web, and bolt it all together every 16"? In that depth/space you can use any beam width you want. Then, frame a light std. header below the stl beam, for the door below.
RE: Wooden Joists Placed Directly on Steel I-Beam
In general do most people prefer to the top flange hanger to a nailer or packing out the web? If you pack out the web are you still providing a top plate for sheathing attachment?
RE: Wooden Joists Placed Directly on Steel I-Beam
RE: Wooden Joists Placed Directly on Steel I-Beam
BA
RE: Wooden Joists Placed Directly on Steel I-Beam
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: Wooden Joists Placed Directly on Steel I-Beam
Eldorado is right. Every once in a while I get one of these flush steel beams from an Architect and I get a nice 1.5" plate. Unfortunately the larger beam flust with the typ. joist need heavier duty hangers. Then I get to spec a custom height hanger which gets welded direct to the steel.
MAP
RE: Wooden Joists Placed Directly on Steel I-Beam
BA
RE: Wooden Joists Placed Directly on Steel I-Beam
MAP