This invention relates to lattice tower for actuate under high load conditions, more particularly to lattice towers utilized for wind turbines and other applications comprising three metallic legs arranged in a triangular configuration around a vertical axis of the lattice tower, wherein each metallic leg has a closed cross-section profile, a distance between the center of metallic legs in a bottom portion of the tower is greater than 4 meters, an angle of inclination of a central longitudinal axis of each metallic leg in relation to the vertical axis of the tower is between 1.7 degree and +1.7 degrees, and the height of the lattice tower is greater than 60 meters, a plurality of bracing members and auxiliary bracing members and a support platform disposed at a top portion of the tower.

The invention relates to a method for producing a support structure having a three-dimensional geometry curved in any manner, made of at least one first and one second flat material piece, wherein the geometry has curves in three directions that are orthogonal to one another, with the following steps: A. preparing the desired geometry B. approximating the desired geometry C. subdividing the geometry D. defining at least one clearance region E. defining a plurality of connection points arranged on the at least one first and one second part F. defining chamfered edges extending between the polygonal cross-sections G. developing the at least one first and one second part H. cutting to length at least one first and one second flat material piece I. chamfering J. connecting the at least one chamfered first material piece and the at least one chamfered second material piece.

A tower section is for a truss tower. The tower section has three or more elongated corner beams arranged in parallel and spaced apart, and a plurality of transverse beams connected perpendicular to adjacent corner beams, thereby forming respective three or more sides. The transverse beams are distributed along the sides so that the transverse beams of one of the side are arranged offset to the transverse beams of the other sides.

An extruded profile defining a normal section surface, a horizontal loading direction along the normal section surface and a vertical loading direction along the normal section surface perpendicular to the horizontal loading direction The profile includes a core arranged in a central position at the intersection of the directions, a plurality of arms each including a radial segment radially connected to the core and a tangential segment perpendicularly connected to the radial segment The radial segments of the adjacent arms are perpendicular to each other and each oriented 45? to the horizontal load direction and/or the vertical load direction, and the tangential segments of the adjacent arms are configured to simultaneously support the same load along the horizontal load direction and/or the vertical load direction.

This invention relates to lattice tower for actuate under high load conditions, more particularly to lattice towers utilized for wind turbines and other applications comprising three metallic legs arranged in a triangular configuration around a vertical axis of the lattice tower, wherein each metallic leg has a closed cross-section profile, a distance between the center of metallic legs in a bottom portion of the tower is greater than 4 meters, an angle of inclination of a central longitudinal axis of each metallic leg in relation to the vertical axis of the tower is between 1.7 degree and +1.7 degrees, and the height of the lattice tower is greater than 60 meters, a plurality of bracing members and auxiliary bracing members and a support platform disposed at a top portion of the tower.

A thin wall profile member (TPM) with a cross-sectional shape and dimensions constant along its length is pre-constructed for use as a load carrying, weight optimized structural element. The TPM has at least one main strip having longitudinal reinforcing ribs and at least one additional strip having longitudinal reinforcing ribs. The at least one additional strip has a width that does not exceed a width of the at least one main strip and has a thickness that equals or exceeds a thickness of the at least one main strip. A ratio of the width of the at least one additional strip to the width of the at least one main strip is in the range of 0.05 to 1.0. A ratio of the thickness of the at least one additional strip to the thickness of the at least one main strip is in the range of 1.0 to 5.0.

A roof for a building comprises a ridge beam for defining an upper edge of the roof, and a first eaves beam for defining a lower edge of the roof. The roof further comprises a first panel connectable to both the ridge beam and the eaves beam, being capable of spanning the distance therebetween and extending over at least a first portion of the area of the roof. In addition, the roof comprises one or more retention structures positionable relative to the first panel and one of said beams and configured to clamp said panel against the other of said beams.

The invention concerns a truss structure including a plurality of longitudinal members extending parallel to one another in a main extension direction and crossmembers (9) distributed in the main extension direction to connect the longitudinal members mechanically two-by-two, forming a plurality of polygons (11) each contained in a plane perpendicular to the main extension direction. According to the invention, each crossmember (9) connecting two longitudinal members includes a first half-crossmember (9a) with a first end connected to one of the two longitudinal members so as to be able to pivot about a first axis (X1-X1) and a second half-crossmember (9b) a first end of which is connected to the other of the two longitudinal members so as to be able to pivot about a second axis (X2-X2). The two half-crossmembers are connected to one another by an articulation hinge (13) allowing relative rotation of the two half-crossmembers (9a, 9b) about a third axis (X3-X3). The first, second and third axes are parallel to one another and orthogonal to the main extension direction, allowing the truss structure and each crossmember (9) to pass from a deployed position to a folded position in which the first and the second half-crossmembers (9a, 9b) of each crossmember (9) extend substantially parallel one alongside the other in said main extension direction.

This invention relates to lattice tower for actuate under high load conditions, more particularly to lattice towers utilized for wind turbines and other applications comprising three metallic legs arranged in a triangular configuration around a vertical axis of the lattice tower, wherein each metallic leg has a closed cross-section profile, a distance between the center of metallic legs in a bottom portion of the tower is greater than 4 meters, an angle of inclination of a central longitudinal axis of each metallic leg in relation to the vertical axis of the tower is between 1.7 degree and +1.7 degrees, and the height of the lattice tower is greater than 60 meters, a plurality of bracing members and auxiliary bracing members and a support platform disposed at a top portion of the tower.

A long, hollow, multiple sided profile device where at least one of the sides is provided with a bolthole, and where at least one of the sides of the profile is provided with a bolt opening.