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.