That making it as a cylinder, with the outer skin carrying all forces, is impractical doesn't mean it's not possible to solve the problems.
One simple idea, add spokes in tension, they will do much to reduce the hoop stress of things, and they don't lose efficiency as curvature drops, basically this will reduce the problem to that of the physics of a suspension bridge deck.
Reductionist and proud of it.
Being ignorant is not so much a shame, as being unwilling to learn. Benjamin Franklin
Chase after the truth like all hell and you'll free yourself, even though you never touch its coat tails. Clarence Darrow
A person who won't read has no advantage over one who can't read. Mark Twain