Vibration damper RESTON-PSD

seismicmechanical

Product overview
RESTON-PSD preloaded spring dampers are seismic protection devices designed to dissipate seismic energy in structures. Under normal conditions they act as a fixed connection and only allow movement once a defined preload has been exceeded. They provide energy dissipation and re-centering for dynamic control of seismic and traffic forces.

Characteristics

• Energy dissipation and re-centering
• Normally fixed until preload reached
• Designed for dynamic control (e.g. seismic and traffic forces)

Principle
The RESTON-PSD preloaded spring dampers limit and damp the movements that arise between parts of a structure during an earthquake. They behave as fixed connections until a defined preload is exceeded, after which they dissipate energy and enable controlled movement with re-centering capability.

Applications
RESTON-PSD dampers can be used in new construction or to upgrade existing structures. On bridges, they are typically installed directly between the bridge deck and its piers. They are suitable where controlled dissipation and re-centering are required to protect structural integrity under dynamic loads.

Technical specifications

• Product type: Preloaded spring damper (seismic device)
• Main functions: energy dissipation, re-centering, dynamic control
• Typical installation: between bridge deck and piers; applicable to new and existing structures
• Behavior: fixed connection under normal conditions; activated when defined preload is exceeded
• Cross-section types referenced on product page: PSD 1650/580-100 and PSD 1650/580-210
• Available documentation: product brochure and detailed cross-section drawings