SPACE ROOF Russian patent published in 1998 - IPC

FIELD: civil engineering; may be used as roofs of buildings and structures of various applications, including prefabricated ones. SUBSTANCE: space rood includes linear members of four-sided space bearing contour, flexible lines oriented parallel to one of diagonals of bearing contour and connected to it with their ends for tensioning, linear girders-spreaders oriented in plan parallel to two of opposite lying members of contour and attached with their ends to two main members, sheet rood deck. In this roof, girders-spreaders are suspended in intermediate points of span from flexible lines. Roof sheet deck is corrugated with variable corrugation spacing over sheet. Girders-spreaders and member of bearing contour parallel to them in plan are turned relative to each other in vertical plane at the same angle and provided with plates secured with inclination and spaced at a distance determined by the formula given in the invention description. EFFECT: increased strength and reduced deformation of space roof structure. 10 dwg