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Study of wire rope devices for improving the re‐centering capability of base isolated buildings
Author(s) -
Spizzuoco Mariacristina,
Quaglini Virginio,
Calabrese Andrea,
Serino Giorgio,
Zambrano Claudia
Publication year - 2017
Publication title -
structural control and health monitoring
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.587
H-Index - 62
eISSN - 1545-2263
pISSN - 1545-2255
DOI - 10.1002/stc.1928
Subject(s) - wire rope , rope , structural engineering , stiffness , engineering , earthquake shaking table , base isolation , shock (circulatory) , vibration , isolation (microbiology) , slider , base (topology) , vibration isolation , mechanical engineering , acoustics , mathematical analysis , mathematics , medicine , physics , microbiology and biotechnology , frame (networking) , biology
Summary Wire rope devices have found numerous applications in the shock and vibration isolation of industrial machinery and equipment. The aim of the work is to present a preliminary investigation of their usefulness as a mean to increase the re‐centering capability of the isolation system of a civil structure. In the first part of the study, analytical formulations have been developed to predict the restoring stiffness of wire rope devices depending on their material and geometrical properties, and the direction of loading. In the second part, a preliminary assessment of wire rope springs has been performed based on unidirectional shake table tests on a scaled steel structure isolated with curved surface slider and either or not provided with wire rope springs. The changes in the seismic response of the isolation system are analyzed and some suggestions for improving the use of wire rope devices are drawn. Copyright © 2016 John Wiley & Sons, Ltd.