VAULTED COVERING Russian patent published in 1997 - IPC

FIELD: construction engineering. SUBSTANCE: this relates to construction of agricultural, industrial and public buildings for multipurpose use from undulated thin-wall components. Vaulted covering has bearing members and installed on them are large-size plates with vaulted flange and two ribs of variable cross-section in length which are interconnected in vault lock with use of inserted parts (hinges). Vaulted flange and longitudinal ribs are made with bends over length of structure, and number of rib bends is equal to number of flange bends. Covering has flexible flat sectional strips made up of several sectional members. Each member is curved in longitudinal direction over cylindrical surface at radius equal to radius of arc inscribed in folding surface of flange of large-size plate. Sectional members are located between plates spread to width of strips and resting on cantilever protrusions of longitudinal ribs of plates. Connection of plates and sectional members into single spacious system is made in overlapping with use of sheet members installed atop. Longitudinal ribs are made with less number of bends as compared with flange. EFFECT: high efficiency. 6 dwg