Seismic damper MRSDS

STEEL DAMPERS HORIZONTALLY OPERATING IN TWO DIRECTIONS AND RE-CENTERING: MRSD MRSDs are used in bridge and building construction and can be combined with customary sliding bearings for load transmission. The comparably high energy dissipation is achieved by steel elements of a special geometry that undergo plastic deformation depending on the displacement value. They generate the necessary re-centering of the building at corresponding deformation. Extremely high forces (2,000 kN and more) can be realized in case of very large displacements up to +/-1.5 m and more. Due to the changing stiffness depending on the displacement amplitude and the strong increase of force at the end of the movement capacity, structural displacements are reduced by up to 30% compared to customary hysteresis dampers, hydraulic dampers or sliding isolation pendulum bearings. Thus, the dampers are outstandingly suited as re-centering dissipators in seismic isolations of buildings/bridges as well as in diagonal braces of buildings.