Truss structure made of steel u-profiles or braced with steel t-profiles and wall structure with reduced thermal bridge made of said truss-grid

摘要

Lattice girder comprises angle or T steel elements connecting the two U profiles. Angle steel elements (5) are fixed in pairs with their cut surfaces (8) to the base plate (3) of the U profile (2) while their vertices (9) are fitted together. The flanges (4) of the U profile (2) are joined along them by means of welding seams (12). The angle steel elements (5) are fitted to the base plate (3) of the other U profile (2) of the lattice girder (1) along their other cut edges (10), so that on the same surface the next angle steel element (5) is fitted along its cut edge (10) ensuring that the vertices (11) of the two angle steel elements (5) join. The section of flanges (6) of the angle steel elements (5) is fitted in a shape closing manner to the flanges (4) of the U profile (2), and they are joined along this section by means of welding seam (12). The angle steel elements (5) are fixed the same way along the entire length of the U profile (2), and terminating element (21) is attached to the end of U profiles (2). External surface of the base plate (3) of both U profiles (2) is provided with thermal insulating strip (25).