GERB Viscous Wall Damper (GVWD)
GERB Viscous Wall Damper (GVWD)
GERB Viscous Wall Damper (GVWD)
Protection of buildings & structures against earthquakes and wind induced vibrations
GERB Viscous Wall Dampers (GVWD) are a special design of common Viscodampers®. They are installed in buildings and structures connecting different floors. They are reducing inter-storey drift ratios during wind or seismic excitation. GVWD act in one horizontal direction and increase the overall damping of the structure. Reduced inter-storey drifts result in lower internal forces and moments improving comfort, safety and reliability.
Protection of buildings & structures against earthquakes and wind induced vibrations.
GERB Viscous Wall Dampers (GVWD) are a special design of common Viscodampers®. They are installed in buildings and structures connecting different floors. They are reducing inter-storey drift ratios during wind or seismic excitation. GVWD act in one horizontal direction and increase the overall damping of the structure. Reduced inter-storey drifts result in lower internal forces and moments improving comfort, safety and reliability.
Protection of buildings & structures against earthquakes and wind induced vibrations.
GERB Viscous Wall Dampers (GVWD) are a special design of common Viscodampers®. They are installed in buildings and structures connecting different floors. They are reducing inter-storey drift ratios during wind or seismic excitation. GVWD act in one horizontal direction and increase the overall damping of the structure. Reduced inter-storey drifts result in lower internal forces and moments improving comfort, safety and reliability.
GVWDs between two floors
(two typical situations)
GVWDs between two floors
(two typical situations)
GVWDs between two floors
(two typical situations)
GVWDs consist of a steel housing connected to the lower floor/structure, an inner piston connected to the upper floor, and viscous liquid inbetween. During seismic and strong wind excitation, the relative displacement between upper and lower structure causes the piston moving through the viscous liquid. Damping forces are induced and yield kinetic energy dissipation. Depending on the damping required and/or to achieve acceptable relative displacements between the floors, different damper sizes with suitable performance levels can be selected. Several dampers can work in parallel, if required.
GERB Viscous Wall Dampers have been developed and designed to meet the needs of architects and structural engineers. They come in various sizes, can be installed within the regular wall structures, and are suitable for new builds, but also applicable for retrofitting measures.
GVWDs consist of a steel housing connected to the lower floor/structure, an inner piston connected to the upper floor, and viscous liquid inbetween. During seismic and strong wind excitation, the relative displacement between upper and lower structure causes the piston moving through the viscous liquid. Damping forces are induced and yield kinetic energy dissipation. Depending on the damping required and/or to achieve acceptable relative displacements between the floors, different damper sizes with suitable performance levels can be selected. Several dampers can work in parallel, if required.
GERB Viscous Wall Dampers have been developed and designed to meet the needs of architects and structural engineers. They come in various sizes, can be installed within the regular wall structures, and are suitable for new builds, but also applicable for retrofitting measures.
GVWDs consist of a steel housing connected to the lower floor/structure, an inner piston connected to the upper floor, and viscous liquid inbetween. During seismic and strong wind excitation, the relative displacement between upper and lower structure causes the piston moving through the viscous liquid. Damping forces are induced and yield kinetic energy dissipation. Depending on the damping required and/or to achieve acceptable relative displacements between the floors, different damper sizes with suitable performance levels can be selected. Several dampers can work in parallel, if required.
GERB Viscous Wall Dampers have been developed and designed to meet the needs of architects and structural engineers. They come in various sizes, can be installed within the regular wall structures, and are suitable for new builds, but also applicable for retrofitting measures.
Energy dissipation - typical dynamic performance
Force vs. velocity
Force [kN]
Velocity [mm/s]
Energy dissipation - typical dynamic performance
Force vs. velocity
Force [kN]
Velocity [mm/s]
Energy dissipation - typical dynamic performance
Force vs. velocity
Force [kN]
Velocity [mm/s]
Characteristics
- Technology well known and proven in all kinds of structures worldwide
- Reliable technology as based on viscous shear forces
- Maintenance / abrasion free (no mechanical wear and tear)
- Working in horizontal direction of the wall
- High damping forces / increasing demands lead to increased damping force
Fields of application
- Tall and medium to large buildings
- Flexible buildings
- Buildings with a high content value
- Buildings that require continuous operation
- Retrofitting measures
GVWD on a teststand
Installation
GVWD are available in different standard sizes between a range of 1500 mm and 2400 mm. Customized sizes are manufactured upon request. Transportation and installation of GVWDs depend on the specific project specifications.
Characteristics
- Technology well known and proven in all kinds of structures worldwide
- Reliable technology as based on viscous shear forces
- Maintenance / abrasion free (no mechanical wear and tear)
- Working in horizontal direction of the wall
- High damping forces / increasing demands lead to increased damping force
Fields of application
- Tall and medium to large buildings
- Flexible buildings
- Buildings with a high content value
- Buildings that require continuous operation
- Retrofitting measures
GVWD on a teststand
Installation
GVWD are available in different standard sizes between a range of 1500 mm and 2400 mm. Customized sizes are manufactured upon request. Transportation and installation of GVWDs depend on the specific project specifications.
Characteristics
- Technology well known and proven in all kinds of structures worldwide
- Reliable technology as based on viscous shear forces
- Maintenance / abrasion free (no mechanical wear and tear)
- Working in horizontal direction of the wall
- High damping forces / increasing demands lead to increased damping force
Fields of application
- Tall and medium to large buildings
- Flexible buildings
- Buildings with a high content value
- Buildings that require continuous operation
- Retrofitting measures
GVWD on a teststand
Installation
GVWD are available in different standard sizes between a range of 1500 mm and 2400 mm. Customized sizes are manufactured upon request. Transportation and installation of GVWDs depend on the specific project specifications.
Application sectors
Application sectors
Application sectors
MANUFACTURING, INDUSTRY & ENERGY 
ARCHITECTURE & CONSTRUCTION 
TRANSPORTATION & INFRASTRUCTURE 