Hi Tom
Thanks for the picture, I like this one.
I'm sure I said there is a
few not
none who house the braces. Maybe I was wrong and all of you house braces. It was just my personal experience.
You made some comments about how brace act, sure you're right and I'm pretty aware of that. I also agree that properly housed brace does not have to be pegged. But I was always concerned about accuracy and squaring frame where you need to have some allowance for movement. That's why gap at shoulder face may open after you square the frame and pegging is a simple fix to keep brace in place.
As of the engineering concept for brace in compression I would always assume the following
housed & pegged brace:- possible gap between surfaces
- peg is the only structural element
- peg breaks
- surfaces are closed
- load is transfered through shoulders
housed brace only:- possible gap between surfaces
- free movement until surfaces close
- surfaces are closed
- load is transfered through shoulders
and what about braces in tension?
housed & pegged brace:- possible gap between surfaces (has no effect)
- peg is the only structural element
- tenon breaks (not enough end distance)
- surfaces are widely opened
- no tension resistance whatsoever but brace can be kept in place by peg & tenon relics & possibly by shoulder shape
housed brace only:- possible gap between surfaces (has no effect)
- surfaces are widely opened
- no tension resistance whatsoever, brace is possibly kept in place by shoulder shape
Your preferences may be different but this is why I prefer pegged braces.
Michal
TFDesign
