Damping device for high energy impacts, comprising: - a first metallic plate having a first lower plane surface able to be fixed to a structure to protect from high energy impacts, and a first upper plane surface comprising a plurality of threaded holes; - a second metallic plate, overlapped to said first metallic plate, having a second lower plane surface and a second upper plane surface; - a plurality of springs placed between the first metallic plate and the second metallic plate; - a plurality of reinforcement bars, placed between the first metallic plate and the second metallic plate, extending along a part or along the overall length of said first metallic plate and second metallic plate and configured to oppose against shear stresses acting on the second upper plane surface of the second metallic plate, said plurality of reinforcement bars consisting of at least a first reinforcement bar and a second reinforcement bar parallel to each other and fixed to the first upper plane surface of the first metallic plate, and of at least a third reinforcement bar and a fourth reinforcement bar parallel to each other and fixed to the second lower plane surface of the second metallic plate, the first reinforcement bar and the third reinforcement bar being partially in contact with each other in correspondence of respective side surfaces, the second reinforcement bar and the fourth reinforcement bar being partially in contact with each other at respective side surfaces; characterized in comprising a plurality of auxiliary bars parallel to each other and parallel to the third reinforcement bar and to the fourth reinforcement bar, said auxiliary bars being fixed to the second lower plane surface of the second metallic plate and comprising over surfaces parallel to the second lower plane surface a plurality of first seats, in comprising a plurality of metallic cylinder-shaped support elements, each of said metallic cylinder-shaped support element being fastened at a threaded end by means of a threaded hole comprised in the plurality of threaded holes, and in that each spring comprised in the plurality of springs has a spiral profile and is placed so as to enclose into its inner section a corresponding metallic cylinder-shaped support element. - a first metallic plate having a first lower plane surface able to be fixed to a structure to protect from high energy impacts, and a first upper plane surface comprising a plurality of threaded holes; - a second metallic plate, overlapped to said first metallic plate, having a second lower plane surface and a second upper plane surface; - a plurality of springs placed between the first metallic plate and the second metallic plate; - a plurality of reinforcement bars, placed between the first metallic plate and the second metallic plate, extending along a part or along the overall length of said first metallic plate and second metallic plate and configured to oppose against shear stresses acting on the second upper plane surface of the second metallic plate, said plurality of reinforcement bars consisting of at least a first reinforcement bar and a second reinforcement bar parallel to each other and fixed to the first upper plane surface of the first metallic plate, and of at least a third reinforcement bar and a fourth reinforcement bar parallel to each other and fixed to the second lower plane surface of the second metallic plate, the first reinforcement bar and the third reinforcement bar being partially in contact with each other in correspondence of respective side surfaces, the second reinforcement bar and the fourth reinforcement bar being partially in contact with each other at respective side surfaces;