Modified hoop coop idea, been done?

[lazy gardener]

What a great idea

Do you have any cross framing too between the ends? I found that's what really strengthens the arch.

No, I don't. Simply the ridge pole. I found that with the bend of my panels, a 2 x 4 would fit perfectly under the center wire at top. I stapled this to that center wire. This ridge pole is then supported by 2 x 4's on end walls. The 2 x 4 fit perfectly between the horizontal grids under the ridge pole. I simply marked these 2 x 4's with correct angle to match up with the arc of the panels, and cut them, rounding off the bottom edge, while leaving it long enough to be supported by the horizontal wire below it. Framing in the rest of the end wall was easy, using triangulation, and horizontal supports as needed. For doors, I either built a door, or in the case of the green house, I bought aluminum combination windows (complete with screens) for $10 each at Habitat for humanity restore.

Using prop boards would be easy enough it sounds like. Although i have a hard time getting my head around that in a half hoop set up. There won't be a "peak" to put them into. At least i don't think there will unless it arcs differently than i envision. Only a test will answer that unless someone pops up who did this. Me and my ideas.

I discussed your plan with my hubby, who designs trusses for a living. He is well versed in dealing with design to work with snow loads, and building a strong structure. But, of course, working with CP introduces an element into the design process that makes all warranties, implied or otherwise obsolete!!! His suggestion was to put a ridge pole part way down your arc, and cross brace from that ridge pole back to the building. Remember that the strongest most stable support is going to take advantage of a triangular shape.

someone did this.. they put a 2x4 on the barn wall at the height that worked... made a base.. stuck one end of the cp under the wall 2x4 and put the other end in the base... I am looking for that build...

Putting the CP UNDER the 2 x 4 would hold it against the building. But, any kind of load on it would force it to creep down the wall. I think it might work to put it under the 2 x 4, and staple it in place (to the 2 x 4), then put a second 2 x 4 UNDER that to keep it from creeping down. Essentially, it would be fastened, and sandwiched between the 2 x 4's.

I wonder if using the off set ridgepole, as suggested by my Hubby, bracing that back to the building, and placing a vertical support here and there, kind of like building a knee wall, would do the trick. Think about the support system in place for a gambrel roof. Basically, you would be building 1/2 of a gambrel roof, but it would be "curvy"!

 

[aart]

Laid out a panel to your dimensions of 7' high and 9' out from wall,
it only took 13.5' of the 16' long panel to attain this.
It's not clear what the dimensions of the end wall of your run is,
where I think you want to attach this to,
so I can't tell if a full panel would fit.
Would be easy for me to lay out if you want to get a good pic,
and the dimensions(width and both heights).
You'd have to go up and out about a foot for full panel to fit,
or cut panel.
Either way, I think a 'ridge' pole/beam(s) supported by end walls and/or posts to the ground would defintely be needed to support a snow load.

I hope this image is readable...looks good from here...and makes sense.
Sorry, my system is set to decimal inches...
...changing it is a PITA, so I didn't .
84" = 7' and 108" = 9'.
Panel length here is 162.71" = 13.56'

 

[Molpet]

Redhead Rae found this on pintrest and posted it in a different thread
might be of some help.. or not

 

[aart]

Fairly accurate, but there's some flexibility on how you set the curve of a livestock panel.
'Catenary curve' is defined by a hanging chain and misapplied in that illustration.

Another thought on this. Look at my hoop coop page, shows how I modified the curve. Looks pretty Catenary-like on the right, but I didn't want that.
So cranked it down with a ratchet strap and stuck a cross brace in to hold where I wanted it.

 

[lazy gardener]

I am a confirmed hoarder and collector of fasteners of every size, shape, material, and description. Poor hubby. He resorts to stealth mode when he wants to get rid of something. "Don't throw THAT away, I might need it!" "What for?" "Well, I don't know, but I just might need it some day." "Well, if you keep it, will you put it some where where you can find it?" "Of course. I'll put it with the last 3 bags of fender washers that we bought." (sold by the # at the local Marden's salvage and surplus store at $2/#!!!). "You mean, the last 3 bags that we bought within the last year that you can't find?" "Yep, those are the ones, have you seen them?"

 

[Ruralhideaway]

Sorry my internet is slow tonight my upload must have failed.
This isn't my coop, but same type panels.
On the new addition I would use them on part of it.
Thank you! An idea of where I'd need to brace would be handy.

 

[Ruralhideaway]

I have yes! I think they are great, many advantages. Of course I'm hoping to use the design a little bit differently as I have the one barn wall to incorporate.

 

[Smuvers Farm]

Tagging @Molpet since she has the framing done on her hoop coop for snow issues.

 

[aart]

someone did this.. they put a 2x4 on the barn wall at the height that worked... made a base.. stuck one end of the cp under the wall 2x4 and put the other end in the base... I am looking for that build...

I'm remembering that too......hope you can find it.

 

[CapricornFarm]

I have yes! I think they are great, many advantages. Of course I'm hoping to use the design a little bit differently as I have the one barn wall to incorporate.

Why not use the barn wall as one end?