Patent ID: 8528266
Filing Date: 2013-09-10
Classification: E04B

Abstract:
1. A domed non-steel roof structure, the roof structure including: a plurality of non-steel, generally rectangular roof members, each of the roof members including: an upper surface; a lower surface; a pair of first opposed side surfaces diverging from the upper surface to the lower surface; a pair of second opposed side surfaces diverging from the upper surface to the lower surface; at least one first passage from one of the pair of the first side surfaces to the other of the pair of the first side surfaces; and at least one second passage from one of the pair of the second side surfaces to the other of the pair of the second side surfaces; a first cable passing through the first passages in adjacent said roof members; and a second cable passing through the second passages in adjacent said roof members, whereby applying tension to the first cable adjacent the outermost two of the first side surfaces and applying tension to the second cable adjacent the outermost two of the second side surfaces drives the end faces of adjacent said roof members towards each other thereby increasing the angle between adjacent said roof members in a first direction and a second direction, substantially normal to the first direction.