Shock-absorbing device, in particular for damping impacts of energy greater than 50 kJ from an impacting object that may strike said device in a working direction, intended to protect a structure to be protected, comprising: - a plurality of bearing areas intended to bear on the structure to be protected and extending substantially within a reference plane, - a metal front plate arranged opposite the structure to be protected, - an intermediate stack arranged between the front plate and the bearing areas, comprising at least: - a plurality of metal first tubular sections arranged parallel to a first axis X of the reference plane and spaced apart from one another transversely along the second axis of the reference plane, the first sections forming a first layer, - a plurality of metal second tubular sections arranged parallel to the first axis and spaced apart from one another transversely along the second axis, the second sections forming a second layer, - a third layer, interposed between the first and second layers, formed by a metal plate or third tubular sections arranged parallel to the second axis and spaced apart from one another transversely along the first axis, characterized in that the positions of the first and second sections are offset relative to one another along the second axis, such that at no location is a second section located above a first section along the working direction. - a plurality of bearing areas intended to bear on the structure to be protected and extending substantially within a reference plane, - a metal front plate arranged opposite the structure to be protected, - an intermediate stack arranged between the front plate and the bearing areas, comprising at least: - a plurality of metal first tubular sections arranged parallel to a first axis X of the reference plane and spaced apart from one another transversely along the second axis of the reference plane, the first sections forming a first layer, - a plurality of metal second tubular sections arranged parallel to the first axis and spaced apart from one another transversely along the second axis, the second sections forming a second layer, - a third layer, interposed between the first and second layers, formed by a metal plate or third tubular sections arranged parallel to the second axis and spaced apart from one another transversely along the first axis, characterized in that the positions of the first and second sections are offset relative to one another along the second axis, such that at no location is a second section located above a first section along the working direction. - a plurality of metal first tubular sections arranged parallel to a first axis X of the reference plane and spaced apart from one another transversely along the second axis of the reference plane, the first sections forming a first layer, - a plurality of metal second tubular sections arranged parallel to the first axis and spaced apart from one another transversely along the second axis, the second sections forming a second layer, - a third layer, interposed between the first and second layers, formed by a metal plate or third tubular sections arranged parallel to the second axis and spaced apart from one another transversely along the first axis,