POWER TRANSMISSION TOWER STRUCTURE Russian patent published in 2007 - IPC E04H12/08 

FIELD: construction, particularly tower structures made as three-dimensional trusses for power transmission line supporting.

SUBSTANCE: tower structure comprises figured belts spaced a distance one from another and connected with each other through grid members so that closed transversal profile is created. Each figured belt is of polyhedral shape and is made of solid metal sheets curved in transversal plane for the full tower structure height to impart predetermined shape to central surface and bent surfaces extending therefrom at obtuse angles. The bent surfaces define stiffening ribs of the belt and have predetermined shapes. Above belt surface planes are inclined to vertical three-dimensional truss axis. Grid members are fixedly secured to extreme stiffening ribs of adjacent belts. Grid members and stiffening ribs are in single plane with each side face of three-dimensional truss. Stiffening ribs of adjacent belts are parallel to each other. Ends of grid members included in adjacent belts are parallel to each other. Ends of grid members made in adjacent side truss faces are fastened to common joints of truss belts. Each profiled belt has five sides and comprise flat central surface. All surfaces of each profiled belt are shaped as isosceles triangle or trapeze with larger base arranged at truss base.

EFFECT: steel consumption for belt production.

1 dwg