Results Obtained from Testing a Hybrid Model of Vibration Isolation System
Abstract
The achievement of new civil and industrial buildings or the rehabilitation
of old ones involves using special systems designed to avoid the dynamic
requests represented by shocks, vibrations or seismic actions. Such systems
are already used worldwide in various modern building structures but also
for bridges or viaducts. Whether it is about isolation or energy dissipative
systems they provide a high degree of stability and safety in exploitation
for the structures to which they are attached. Elastomeric bearings and dry
friction based systems are already used for equipping bridges and viaducts
structural types in order to avoid the sudden ground movements that can
occur with the advent of an earthquake. This paper proposes an
experimental model for a hybrid isolation system composed of elastomeric
bearings and rolling pendulum system, disposed on the vertical direction
in the same assembly. It is expected that from both systems a better
isolation can be achieved against the effects of dynamic loads that affect
the structures. Laboratory tests were carried out using a reduced scale
experimental model of the hybrid isolation system and the results are
shown in the following.
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- 2015 fascicula14 nr2 [18]