SUPPORTING STRUCTURE FOR A NOISE BARRIER
Supporting structure (1) for a noise barrier (6) comprising a metal sheet (2) with a longitudinal development axis (A) and with a first (3) and a second wing (4) parallel to each other, a webplate (5) being fixed therebetween. The wings (3, 4) and the webplate (5) each have a main development direction parallel to the longitudinal development axis (A). The metal sheet (2) has a first portion (8) insertable into the ground to define a foundation of the noise barrier (6), and a second portion (9), having a first fixing surface (10) for soundproofing and/or insulating panels (12); the structure (1) comprises an auxiliary element (13) fixed to one of the wings (3, 4) and/or to the webplate (5), the auxiliary element (13) has a second fixing surface (11); the fixing surfaces (10, 11) are substantially coplanar.