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RESTON®PENDULUM

RESTON®PENDULUM

RESTON®PENDULUM

Product catalog summary
Seismic Protection Overview
mageba's RESTON®PENDULUM Curved Surface Sliders are designed to protect structures from seismic activity by utilizing a pendulum principle. These devices allow horizontal displacement, shifting the natural period of the structure to prevent resonance during earthquakes. The system's effectiveness is primarily determined by the radius of curvature and the coefficient of friction.

Key Properties
  • Transmit vertical forces and allow horizontal displacements under normal conditions.
  • Provide lateral flexibility during earthquakes through sliding elements.
  • Energy dissipation via dynamic friction between sliding surfaces.
  • Re-centering function through gravity and device geometry.

Seismic Isolation
Seismic isolation involves decoupling structures from ground motions to prevent damage. RESTON®PENDULUM sliders provide flexibility to differentiate the structure's natural period from that of the earthquake, avoiding resonance.

Types of RESTON®PENDULUM
  • Mono (PM): Features a primary curved sliding surface, a steel element with ROBO®SLIDE, and a steel plate for rotations. Suitable for specific maximum design displacements.
  • Duplo (PD): Includes two sliding surfaces for higher displacements with smaller dimensions, ideal for bridges requiring significant rotational capacity.

Materials and Dimensions
  • Steel parts made from S355, ROBO®SLIDE material, silicone grease, hard chrome coating, and stainless steel sliding plates.
  • Dimensions vary based on vertical load and maximum design displacement, with specific values provided for both Mono and Duplo types.

Benefits
  • Reduces dynamic impact, increases seismic safety, and supports high load capacities.
  • Re-centering capabilities and adaptability for new or retrofitted structures.
  • Durable and maintenance-free due to high-quality materials and corrosion protection.

Quality and Support
  • mageba's products are ISO 9001:2008 certified, with CE marking for compliance with European standards.
  • Testing is conducted in-house and by independent facilities, ensuring high quality and reliability.
  • Installation supervision and maintenance manuals are provided to ensure proper handling and longevity.

Customer Support
mageba offers consulting for optimal seismic solutions and provides comprehensive product information and support through their website.
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Catalog excerpts

RESTON®PENDULUM-1

Seismic protection mageba seismic protection devices – for reliable preservation of structures RESTON®PENDULUM Curved Surface Slider safe, innovative, versatile

 Open the catalog to page 1
RESTON®PENDULUM-2

Seismic protection Characteristics & types Principle mageba RESTON®PENDULUM curved surface sliders are based on the working principle of a pendulum. They allow the horizontal displacement of structure, providing the required shift in the natural period of the structure. Once activated by an earthquake, the isolators will allow the decoupling of the supported structure from the ground motion. After the seismic event, the restoring force due to gravity will bring it back towards the centre position. The performance of the device mainly depends on its radius of curvature and the coefficient of friction....

 Open the catalog to page 2
RESTON®PENDULUM-3

Seismic protection Properties & benefits Materials Corrosion protection The following materials are used by mageba for the production of the RESTON®PENDULUM curved surface sliders: mageba proposes standard corrosion protection systems according to EN ISO 12944, with corrosivity category depending on location, environmental conditions and the required degree of protection. • Steel parts made from S355 • Certified ROBO®SLIDE sliding material with and without grease dimples in accordance with European Technical Approval ETA-08/0115 • Certified silicone grease as lubricant Corrosion protection systems...

 Open the catalog to page 3
RESTON®PENDULUM-4

Seismic protection Quality & support Quality For five decades, mageba bearings have proven their worth in thousands of structures under most demanding conditions. In addition to the product properties, the extensive experience of mageba’s wellqualified manufacturing and installation staff also contributes to the high quality and durability of the products. If required by the client, a full-scale factory production control testing can be carried out. mageba performs the tests in-house as well as with independent 3rd party test institutes. Commonly performed tests are based on European Standard...

 Open the catalog to page 4

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.