Patent ID: 8033070

Claim:
A building panel configured to be a load-bearing panel of a self-supporting building structure, the building panel comprising: (a) a curved central portion having a curved shape in cross section perpendicular to a longitudinal direction along a length of the building panel, the curved central portion having transverse corrugations therein; (b) a pair of side wall portions extending from opposite ends of said curved central portion in cross section, said curved central portion being concave-shaped in cross section from a perspective between said side wall portions, wherein said sidewall portions comprise straight portions that extend tangentially in cross section from the concave-shaped curved central portion; (c) a pair of complementary wing portions extending from said side wall portions, (d) wherein said building panel is curved in the longitudinal direction; and (e) wherein said building panel is formed from sheet material and configured to mate with adjacent building panels so as to form a load-bearing panel of a self-supporting building structure.