I rebuilt an old corn barn this last summer. it was three bend so not very big. In the center bent I put a collar tie. I opened up the barn the other day and the collar tie was on the floor.
? is. What is out there to replace the collar tie with something in compression instead of in tension . but can only go rafter to rafter.
Collar beams are almost always in compression. If you can't spend time getting creative trying to put a collar in after-the-fact, maybe you will need to violate the frame with some nails!
Jim
The closer you look the more you see. "Heavy timber framing is not a lost art" Fred Hodgson, 1909
I was under the impression that collar ties don't hold the walls together, but instead serve to keep the rafters from sagging and thereby actually increase the possible wall spread. Is this right? Would someone educate me? Thanks in advance.