Lattice girder for concrete reinforcement, has lower chord extending parallel to upper chord in latitudinal direction, which is perpendicular to longitudinal direction, where girder exhibits height of hundred millimeter

摘要

The girder has an upper chord (1) extending in a longitudinal direction of the girder, and a lower chord (2) extending parallel to the upper chord in a latitudinal direction, which is perpendicular to the longitudinal direction. A diagonal strut queue (3), the upper chord and the lower chord are connected with each other by a weld point (x). Bendings of the strut queue exhibit same bending radius. A clearance (c) of a center axis of a section (3p) lies at a range of 190 millimeter to 210 millimeter, where the girder exhibits a height of 100 millimeter. An independent claim is also included for a method for manufacturing a lattice girder.