. An anchoring device for anchoring a panel or a glass pane to a building structure, said device comprising: - a box-shaped container, - a first attachment adapted to fix said panel or glass pane, said first attachment being slidable within said box-shaped container, - a second attachment (3, 4) adapted to fix said box-shaped container to the building structure, wherein said first attachment and said second attachment (2, 3, 4) defining a sliding line along which components of first external forces act, which are discharged onto said building structure and being capable of carrying out an internal relative and mutual sliding in a first direction A moving parallel to said sliding line the panel or glass pane closer to said building structure under an action of said first external forces and also being capable of one external relative and mutual sliding in a second direction B moving parallel to said sliding line the panel or glass pane further away from said building structure under an action of second external forces in an opposite direction to the direction of said first external forces, - at least a first dissipative element (6, 10, 11, 16) having a capability of dissipating first compression forces acting in the first direction A, and - at least a second dissipative element (11', 12', 18) having a capability of dissipating second compression forces acting in the second direction B, wherein the at least a first dissipative element and the at least a second dissipative element are different components, and wherein said internal relative and mutual sliding occurs if said first external forces have an intensity greater than an exceptional predetermined threshold, greater than that of forces normally acting on said building structure, characterized in that during said internal relative and mutual sliding in the first direction A there is caused a deformation in the elastic and plastic fields of said at least a first dissipative element (6, 10, 11, 16) and during said internal relative and mutual sliding in the second direction B there is caused a deformation in the elastic and plastic fields of said at least a second (11', 12', 18) dissipative element, thereby causing the first and second external forces to be dissipated. - a box-shaped container, - a first attachment adapted to fix said panel or glass pane, said first attachment being slidable within said box-shaped container, - a second attachment (3, 4) adapted to fix said box-shaped container to the building structure, wherein said first attachment and said second attachment (2, 3, 4) defining a sliding line along which components of first external forces act, which are discharged onto said building structure and being capable of carrying out an internal relative and mutual sliding in a first direction A moving parallel to said sliding line the panel or glass pane closer to said building structure under an action of said first external forces and also being capable of one external relative and mutual sliding in a second direction B moving parallel to said sliding line the panel or glass pane further away from said building structure under an action of second external forces in an opposite direction to the direction of said first external forces, - at least a first dissipative element (6, 10, 11, 16) having a capability of dissipating first compression forces acting in the first direction A, and - at least a second dissipative element (11', 12', 18) having a capability of dissipating second compression forces acting in the second direction B, wherein the at least a first dissipative element and the at least a second dissipative element are different components, and wherein said internal relative and mutual sliding occurs if said first external forces have an intensity greater than an exceptional predetermined threshold, greater than that of forces normally acting on said building structure,