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Shock and Vibration
Volume 2019, Article ID 9346232, 26 pages
https://doi.org/10.1155/2019/9346232
Research Article

Geotechnical Seismic Isolation System Based on Sliding Mechanism Using Stone Pebble Layer: Shake-Table Experiments

University of Split, Faculty of Civil Engineering, Architecture and Geodesy, Matice Hrvatske 15, 21000 Split, Croatia

Correspondence should be addressed to Ivan Banović; rh.tsdarg@civonab.navi

Received 21 December 2018; Revised 7 March 2019; Accepted 12 March 2019; Published 27 March 2019

Academic Editor: Yuri S. Karinski

Copyright © 2019 Ivan Banović et al. 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

Using a shake-table, the effects of several stone pebble layer parameters (the layer thickness, the fraction of pebbles, the pebble compaction, the pebble moisture, the vertical contact stress below the foundation, and the effect of repeated excitations) on layer aseismic efficiency were investigated. For each considered parameter, a model of a rigid building on an aseismic layer was exposed to four different accelerograms, with three levels of peak ground acceleration (PGA), while all other layer parameters were kept constant. For each test, the characteristic displacements and accelerations were measured. Based on the test results, the main conclusions regarding the effect of the considered parameters on the effectiveness of the adopted aseismic layer are given.