how to build 512 sq/ft Inca'ish Pyramid Structure

Ideas, advice, tips, and tricks regarding shelter, shade, tents, and camping. Yes, this includes RV's too.

how to build 512 sq/ft Inca'ish Pyramid Structure

Postby letsburntheman » Thu Jul 18, 2013 9:40 am

we built a tri nearodesic dome last year. 23 boards and lots of cutting.
this shape uses only 17 boards, 4 cuts and has larger sq/ft of 512 but lower ceiling of 6.5 ft high.

http://youtu.be/-PaZQxsTOp4
letsburntheman
 
Posts: 6
Joined: Mon May 20, 2013 3:23 pm
Burning Since: 2011
Camp Name: jackpot

Re: how to build 512 sq/ft Inca'ish Pyramid Structure

Postby burner von braun » Fri Jul 19, 2013 7:11 am

Unlike your pyramid design, it seems to me like this design might not withstand the high winds present on the playa nearly as well. You have a whole lot of unreinforced surface area there, and a less than ideal tension band. If I recall correctly, I think someone mentioned experiencing wind gusts of up to 60-70mph out there a couple of weeks ago.
Another early attempt at success
User avatar
burner von braun
 
Posts: 1027
Joined: Wed Jun 23, 2010 4:37 pm
Burning Since: 2010

Re: how to build 512 sq/ft Inca'ish Pyramid Structure

Postby Canoe » Fri Jul 19, 2013 9:03 am

Another interesting design!

Due to the roof, more work to assembly on-playa, but very useful space inside?
  • 6" bi-filament for the hinges.
  • Strips of Gaffers:
    • across the seam on the non-hinge side for holding the panels in their "open" positions, and
    • securing the corners on the outside.
  • Internal open-fame bulkheads would add the rigidity to take the loads.
    • Inside the structure, run a 2x4 up to the roof, across and down the other side.
    • Bolted plywood plates to join them together at their corners at the roof line; plate large enough to maintain the angle between the 2x4s when under wind load.
    • Anchored to the ground to avoid running another 2x4 across from side to side on the ground (metal angle plate, spiked to the ground?).
    • Painted before assembly for wood moop.
    • One bulkhead at each end and one in the middle?
  • Be a pain to tape all around the roof line, but there's your power band. Or use Gaffer's to seal the roof to the walls, then add bi-filament strips for the strength.
  • You'll need strong guy-line anchor points in line with panel surface so the guy tension doesn't peal the tape off. Or run a strip of bi-filament from the ground on one side over the top and down to the ground on the other. 6" wide is 1,300+ lbs. strong. This should also hold that roof down from any negative pressure with strong airflow over the top?
  • Where a panel goes over an internal wood bulkhead, a long screw with a large washer can secure the panel to the bulkhead. Easy for walls, difficult for roof?
That long side would be more vulnerable to wind than the pyramid, but it is angled to let pressure over the top, so I'd expect the bulk of it wouldn't hit the upper end of the pressure possible from a 75 mph wind.

Again, it's the tie downs.
Highway to Hell. Stairway to Heaven.Traffic prediction?
.
Odd. No bears in the dump. Oh well, lets go across the road & pick blueberries.
.
... but don't harm the red dragon that frequents the area from time to time. He and I have an agreement.
User avatar
Canoe
 
Posts: 2186
Joined: Sun Jul 31, 2011 8:01 pm

Re: how to build 512 sq/ft Inca'ish Pyramid Structure

Postby Canoe » Fri Jul 19, 2013 9:39 am

Canoe wrote:Internal open-fame bulkheads would add the rigidity to take the loads.
Anchored to the ground to avoid running another 2x4 across from side to side on the ground (metal angle plate, spiked to the ground?).
Again, it's the tie downs.


Brute force method.
Wood (2x3" or 2x4"?) all around the perimeter at ground level. Sized to fit inside panels so panels are snug to wood, wood is staked to ground.
Four bulkheads down the long side, one each at a panel seam, tied together at roof line with another 2x3 or 2x4.
Add a stringer for the seams on the short side, bottom to top.
Unfold roof panels (4", even 3" bi-filament should be fine), place and screw in place with large washers.
Unfold side panels, place and screw in place with large washers.
Use gaffers to seal roof to side panels, side panels to wood at bottom.

Not as elegant as a tied down hexayurt, extra weight of wood to transport, but reusable, strong and certainly anchored to the playa.
Nothing to trip on, inside or out.
Highway to Hell. Stairway to Heaven.Traffic prediction?
.
Odd. No bears in the dump. Oh well, lets go across the road & pick blueberries.
.
... but don't harm the red dragon that frequents the area from time to time. He and I have an agreement.
User avatar
Canoe
 
Posts: 2186
Joined: Sun Jul 31, 2011 8:01 pm


Return to Shelter & Camping

Who is online

Users browsing this forum: Bing [Bot] and 1 guest