Abstract: According to the method, at least one carbon fibre-reinforced polymer band is joined to the steel structure at the end regions thereof, capable of transferring tensile forces. Subsequently, at least one lifting element (7) disposed between the carbon fibre-reinforced polymer band (4) and the steel girder (3) to be reinforced in a region between these end anchorages (5), is extended substantially perpendicular to the carbon fibre-reinforced polymer band (4). So, a tensile force stress is generated between the end regions of the carbon fibre-reinforced polymer band (4). Then, a steel girder treated in such a manner includes at least one carbon fibre-reinforced polymer band, which is each joined to the steel structure (1) at the end regions thereof, capable of transferring tensile forces.

Abstract: Device for damping the vibrations of a sheet of stays of a work of construction, the sheet of stays comprising at least one first stay (4a) and one second stay (4b). The device comprises at least one damper (6) with substantially linear stroke, which has a first connection (7) articulated on the first stay (4a) and a second connection (8) articulated on the second stay (4b), and the axis of the damper (6) is substantially perpendicular to first and second stays (4a,4b).