Patent ID: 8522502

Claim:
A lattice mast structure for framework towers of wind power installations having a height of more than 80 meters comprising: corner posts which are each formed from at least two sub-profiles comprising a first sub-profile and a second sub-profile which are not integrally connected to one another, wherein the first and second sub-profile together form a closed overall profile of a corner post of said corner posts having at least two connecting joints, whereby said connecting joints of the closed overall profile of the corner post are established such that said connecting joints are arranged aligned with one or more corresponding connecting joints of closed overall profiles of one or more adjacent corner posts and wherein the second sub-profile is angled in the cross section over a longitudinal edge with an angle alpha in a range of 50° and 70°, and the first sub-profile is angled in the cross section over two longitudinal edges with an angle beta and an angle gamma, each in a range of 60° to 90°, wherein the internal contour which is formed by the direct connection of the angles alpha, beta and gamma, of the assembled overall profile of the corner post that is triangular in shape and the sum of the angles alpha, beta and gamma are between 160° and 250°; and struts which are connected to the corner posts, wherein the struts and the corner posts are arranged in a lattice configuration to produce a framework tower structure, wherein the lattice configuration comprises one or more of the struts connecting non-adjacent corner posts.