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FIP ARTICOLI TECNICI S.R.L.
Italy
Tuned mass dampers, also known as TMD, are one of the many types of anti-vibration systems manufactured by FIP INDUSTRIALE. They are especially suitable to be used in flexible structures affected by external phenomena characterized by a range of disturbance frequencies such as to interfere with the own frequency of the structure. Said devices are therefore applied to walkways, cable-strayed bridges, coverage and stadium terraces, chimneys, towers and skyscrapers etc. in order to reduce structural oscillations due to the disturbance (for example running pedestrians, dancing audience, wind, earthquake, ...). TMD testing at FIP INDUSTRIALE laboratory
Request for a quoteFIP ARTICOLI TECNICI S.R.L.
Italy
EVED series elastomeric visco-elastic dampers consist of one or more layers of high-damping elastomeric mixture, characterized by equivalent viscous damping 15÷20% and shear deformation of 100%. Traditionally they are used as components of dissipative bracings in buildings in a framework; the layers of elastomer can be arranged both on the vertical and horizontal plane. Experimental hysteretic cycles of an EVED damper (frequency 0.5 Hz and shear deformation ± 100 %). Vibrating table tests on a concrete frame with EVED dampers on top of a reverse-V bracing. An EVED damper installed at the Gentile-Fermi school of Fabriano.
Request for a quoteFIP ARTICOLI TECNICI S.R.L.
Italy
Steel hysteretic dampers exploit the plasticization of appropriately-shaped steel elements, designed to ensure a stable cyclic behaviour. Crescent-shaped and peg-shaped elements are the most used for bridges, while buckling-restrained axial dampers (BRAD) are the most used as dissipative bracings in buildings. For bridges, steel hysteretic dampers can be combined with shock transmitters. Experimental hysteretic cycles of a hysteretic damper with crescent-shaped elements. Steel hysteretic damper consisting of double-peg elements and shock transmitters (Jamuna Bridge, Bangladesh). BRAD dampers installed at the Cappuccini school of Ramacca (CT).
Request for a quoteFIP ARTICOLI TECNICI S.R.L.
Italy
Spring fluid viscous dampers are cylinder/piston assemblies characterized by a constitutive bond in which reaction force F depends both on speed v and on displacement x, according to law F=F0+Kx+Cvα, where F0 is pre-load force (if any), K is stiffness, C is the damping constant and α=0.15. Pre-load force can be useful to avoid displacements for horizontal service actions. Experimental hysteretic cycles of a spring fluid viscous damper without pre-load force. Spring fluid viscous dampers for the Badia Nuova flyover on highway A1. Spring fluid viscous dampers installed in Rio Higuamo Bridge (Dominican Republic).
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Italy
The OP and OTP series fluid viscous dampers are cylinder/piston assemblies in which the lamination of a silicone fluid through an appropriate hydraulic circuit permits the dissipation of energy. The OTP series, unlike the OP series, permits thermal expansions without remarkable resistance. The typical resulting force-speed constitutive bond is not linear, i.e. F=Cvα, where F is force, C is the damping constant, v is speed, and α=0.15. Force-displacement cycles of a fluid viscous damper in an imposed displacement test with sinusoidal signal. Tests at FIP INDUSTRIALE laboratory on a fluid viscous dampers at Rion-Antirion Bridge (Greece). Fluid viscous dampers installed in the tuned mass damper at the skyscraper Taipei 101 (Taiwan).
Request for a quoteFIP ARTICOLI TECNICI S.R.L.
Italy
These isolators are the combination of a bearing and dampers in a single device; the latter are typically hysteretic dampers of steel and/or fluid viscous dampers. As such, they are characterized by a high damping capacity. The bearing can be multidirectional or unidirectional. Isolators can also include shock transmitters or mechanical fuse restraints. Experimental hysteretic cycles of a flat sliding isolator with steel hysteretic dampers. Installation of a flat sliding isolator with steel hysteretic dampers, at the Santuario 'Madonna delle Lacrime' of Siracusa. Flat sliding isolators with steel hysteretic dampers, installed in the railway lines "Caracas-Cua" and "La Encrucijada-Puerto Cabello", Venezuela.
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