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Advances in Materials Science and Engineering
Volume 2016 (2016), Article ID 2942194, 15 pages
http://dx.doi.org/10.1155/2016/2942194
Research Article

Experimental Tests and Analytical Modelling of a Scaled Isolated Structure on Sliding and Elastomeric Bearings

Dipartimento di Ingegneria Civile, Università della Calabria, Arcavacata, Rende, 87036 Cosenza, Italy

Received 23 August 2015; Revised 8 December 2015; Accepted 13 December 2015

Academic Editor: Luca Caracoglia

Copyright © 2016 Fabio Mazza and Alfonso Vulcano. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The main purpose of this study, which was conducted within the framework of a DPC-ReLUIS research project, was to investigate the behaviour of a scaled isolated structure equipped with an in-parallel combination of steel-PTFE sliding bearings and elastomeric bearings (HDRBs). For this purpose, dynamic tests on shaking table were carried out at the Laboratory of the Department of Structures for Engineering and Architecture of the University of Naples Federico II, Italy. An available prototype steel framed structure was used as a superstructure. A further objective of this study was to evaluate the reliability of different analytical models of the isolation system, commonly used, in order to adequately simulate the dynamic response of the isolated structure. The effectiveness of the isolation system was evaluated comparing the experimental response of the isolated structure with the numerical response of the fixed-base structure.