Viscous Fluid Damper
VFD viscous damper
A piston in a cylinder filled with viscous fluid: the resisting force depends on velocity, and the damper adds damping to the structure with almost no increase in stiffness.
Safetyinside products · 11 items
Seismic dampers and braces
Dampers dissipate the energy that does reach the structure and reduce displacements and forces in the frame. They are used in new and existing buildings — on their own or together with seismic isolation.
Energy dissipation: items in the range
Buckling-Restrained Brace
BRB buckling-restrained brace
A steel core in a restraining casing performs equally in tension and compression and dissipates energy through plastic deformation of the steel.
Viscous Fluid Wall
Viscous damping wall
A wall-type damper: a steel plate moves in a tank of viscous fluid and dissipates energy during inter-storey drift of the frame.
Buckling-Restrained Wall
Buckling-restrained wall (BRW)
A buckling-restrained steel plate wall: it yields in shear, dissipates energy and adds stiffness to the frame.
Friction Damper
Friction damper
Dissipates energy through friction between clamped plates when the brace force exceeds a set slip threshold.
Viscoelastic Damper
Viscoelastic damper
Layers of viscoelastic material between steel plates work in shear and damp vibrations even at small amplitudes — from wind and earthquakes.
Electromagnetic Eddy Current Damper
Electromagnetic eddy-current damper
Dissipates energy through eddy currents as a conductor moves in a magnetic field — with no fluid and no rubbing surfaces.
Rotary Friction Damper (II)
Rotational friction damper (type II)
A friction damper with a rotating joint: energy is dissipated by friction in the hinge as frame members rotate relative to each other.
Bending-Type Metallic Damper
Flexural metallic damper
Specially shaped steel plates work in bending and deform plastically under strong excitation, dissipating energy. A simple and durable device for frames.
Shear-Type Metallic Damper
Shear metallic damper
A steel plate works in shear and dissipates energy through plastic deformation. Installed in braces or between frame members.
Zero-Clearance Viscous Damper
Zero-clearance viscous damper
A viscous damper with no play in its connections: it engages even at small structural displacements.
Diagrams are schematic. Parameters, versions and documents are per the manufacturer's catalogue and the project analysis.
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Send us information about the building and, if available, the structural model — we will prepare a preliminary solution and the manufacturer's documents.