Any one ever do a gazebo roof this way?

[20ozjolt]

I'm looking at different options for doing a timber frame gazebo with a hole in the center for a chimney and I my random searches I came across this photo with no other information this is why I hate Pinterest

[Don P]

It is called a reciprocal frame, or hand in hand framing. It is "self supporting".




A yurt is somewhat similar in look without the stepping problem, however the forces are different. They have a compression ring at the oculus and a restraining tension ring containing the rafter feet.

[fishfighter]

Good info there. Didn't know what it was called, but knew of it ad how it was done. ;D

[Roger Nair]

The illustrated frame appears to me as razzle-dazzle, I'm not sure how all that heavy timber relates structurally to the lightly framed radial rafter system.  I would guess a compression ring up top and a tension ring at the plates was employed.  It would be good to have other views to really get an understanding of this frame.

[20ozjolt]

I was looking at the beams not all that extra stuff... lol

My thought was good old tongue and Grove 1x6 or 2x6 for the roof.

With this frame should I use a lap joint at the top to lok it all together and put the rafters all on the same plane?

EDIT Wow thank you reciprocal roofing is the term I needed for research

[ChugiakTinkerer]

I am amazed at what I pick up on this forum on a near-daily basis.  Thanks 20oz and Don for this educational moment.

I did a reverse image search on the Pinterest photo and found the builders.  Not much technical info but some more views of the structure: http://www.gardendesignhereford.co.uk/gallery/the-octagons/

Now I need to figure out a way to make sure my wife never sees this...  :D

[Heartwood]

From TimberHomes LLC:

Also, the book Reciprocal Frame Architecture is a good resource.