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

FIELD: construction, particularly towers, masts, poles, chimney stacks and so on and methods of erecting such structures.

SUBSTANCE: pole structure comprises spaced apart profiled belts connected with each other through grid members so that closed transversal contour is created. Each profiled belt is of polyhedral shape and is produced of solid metal sheet bent in transversal plane along the full pole structure height so that central surface having predetermined geometrical shape and bent surfaces extending at obtuse angle thereto are created. The bent surfaces define stiffening ribs of the belt and have predetermined geometrical shape. Planes of above belt surfaces are inclined to vertical line of three-dimensional truss. Grid members are rigidly connected to extreme stiffening ribs of adjacent belts and are in common planes with them, wherein the planes are defined by three-dimensional truss side surfaces. Stiffening ribs of adjacent belts are parallel to each other. Ends of grid members of adjacent truss side surfaces are connected to common joints at truss belts. Each profiled belt is of tetrahedral shape and has central surface defined by two surfaces extending at obtuse angle to each other. All surfaces of each profiled belt are shaped as isosceles triangles or trapezes. Base of each triangle or major trapeze base lies in truss base.

EFFECT: decreased steel consumption for belt production.

1 dwg