Timber nailer on Steel beam
Timber nailer on Steel beam
(OP)
I have steel members that will be supporting timber decking. In order to attach the decking to the steel members, I need to design the connection between a timber nailer and the top flange of our W8 shape. I have done a little research and have found that a normal detail for this would be to shop weld studs to the top of the steel and drill the nailer in the field. How exactly can this be designed? The resources I have found have simply said "size and spacing determined by the engineer." Can anyone point me in the right direction?






RE: Timber nailer on Steel beam
Also - much easier and cheaper(than welding) is to place bolts on opposite sides of web as you march down the beam length. Say at most 16'' oc. - 24'' might be OK. Just drill through the wood and steel at same time. NO welding required.
Also have seen powdered actuated anchors used. By far the quickest and easiest meth.
Have fun..
RE: Timber nailer on Steel beam
RE: Timber nailer on Steel beam
RE: Timber nailer on Steel beam
RE: Timber nailer on Steel beam
Also, we've used self-tapping screws for this rather than bolts - look at Hilti's product catalog as they have some screws that can work.
RE: Timber nailer on Steel beam
RE: Timber nailer on Steel beam
1. If you are using top hung joist hangers off the plate, which it does not look like you are, extend the plate to the edge of the seel beam flange.
2. These threaded studs react in bearing against the nailer for shear. So, the max shear is directly related to the diameter of the bolt bearing parallel to grain, or perpendicular to grain, depending on the force direction, and subject to the allowable forces for bolts in the NDS.
3. You might want to countersink the bolt and nut heads into the 2X plate and paint with a good wood preservative.
4. If this is an outdoor application, the plate wants to be pressure treated - real bad!
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: Timber nailer on Steel beam