Wood and metal join tecnique
Wood and metal join tecnique
(OP)
Which is the strongest way to join a Wood beam and a Metal frame?
And Which is the strongest way to join a Wood beam and a Metal Beam?
In the link below I have shown two ways representing both cases.
In figure 1, A wood beam is joined with Metal beam in a way. Which is the strongest joint technique?
In figure 1 and 2, A wood beam is joined with metal frame. First one is indirectly welded. 2nd one is directly screwed.
And Which is the strongest way to join a Wood beam and a Metal Beam?
In the link below I have shown two ways representing both cases.
In figure 1, A wood beam is joined with Metal beam in a way. Which is the strongest joint technique?
In figure 1 and 2, A wood beam is joined with metal frame. First one is indirectly welded. 2nd one is directly screwed.





RE: Wood and metal join tecnique
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: Wood and metal join tecnique
RE: Wood and metal join tecnique
One needs to be careful using connections hanging from bolts or pins. This type of connection can cause cross-grain tension - the weakest and most unpredictable way to load wood. Similar to a wedge used in splitting fire wood.
The wood can split along the line of the fasteners.
RE: Wood and metal join tecnique
RE: Wood and metal join tecnique
RE: Wood and metal join tecnique
The chance of the wood splitting and failing catastrophically is too great.
You really need some steel UNDER the wood. The Screws/Bolts should not support the wood, just keep it in place.
As displayed in the drawings, any wood UNDER the Fasteners is dead weight, and is not contributing any strength to the joint at all. Yes, the wood under the fasteners does make a difference at all places other than the joint. But when the joint fails, nothing else will matter.
That said, Drawing #2 is slightly better (though still problematic). Keep in mind you never want to add additional cuts and holes to any piece wood that are unnecessary, and Drawing #1 does just that.
RE: Wood and metal join tecnique
Honestly, both Drawings concern me a lot if you're using Sawn Lumber.
RE: Wood and metal join tecnique
With a lip of Steel Welded underneath the Wooden Beam, you'd be so much better off.