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Can this modern barn be timber framed?

Started by future_vision, July 14, 2023, 08:26:47 AM

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future_vision

I've been looking at barn styles and came across this and wondered. Can this be timber framed? Thoughts? Can it be done?

https://uncrate.com/assets_c/2018/04/swallowfield-barn-1-thumb-960xauto-83309.jpg

flyingparks


Don P


Ianab

Issue is where the bracing is. I'm guessing that building is a steel frame, and the outside frame is basically engineered to be self supporting. If you timber framed it you would have to get creative and add some bracing into the walls, working around the various doorways and window gaps, That building could also have some extra structural bracing that we can't see. The front frame, being open would need to be tied back to the bracing in the wall behind it. 

So the design would get more complicated than a traditional box with trusses on top design. But nothing a good structural engineer couldn't computer model and certify. 
Weekend warrior, Peterson JP test pilot, Dolmar 7900 and Stihl MS310 saws and  the usual collection of power tools :)

Don P

Continuing with that thought... one way to do that framed in heavy timber, its an asymmetrical glulam tudor arch, which is a 3 hinged arch. The design document is the AITC Timber Design Manual. A quick google gave up this link to a good introductory article;
p16-17C-BB-GlulamArches-on-line-version1.pdf (structuremag.org)

Timberframe is more pin connected joinery. Every connection between members is thought of as free to rotate, this the need to triangularize, brace, the structure. A section cut of that barn still shows 5 sides and 5 "corners" so in tf that is a 5 pin shape and would collapse without something like a ridgebeam  or ties In glulam, you've been in churches and buildings with floor to ridge laminated arched beams, very deep and curved inside up at the eave corners, tapered to the peak and feet. In wood they have created a rigid, moment resisting corner, an arch. It is thinner towards the pinned points at the peak and at each foot to the ground. That barn could easily be an offset pair of arch glulams.

In pin connected joinery but also with that modern look, designers will often use steel rods or cables for the tie element. That's sort of where I was going with the wood design mag link, look at how they handle the forces. 

future_vision

Where would I start getting this designed and generating a cut sheet?

Don P

I hate to be a broken record but this is probably in Firetower Engineering's forte'

Don P

This came in overnite, it has some interesting steel and wood trusses. Their newsletter is aimed at commercial but neat detailing to keep an eye on;

Community Library Showcases Airy Light-Frame Wood Construction - Think Wood

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