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Comparison of fundamental properties of new types of fiber-mesh-reinforced seismic isolators with conventional isolators
Date
2014-02-01
Author
Naghshineh, Ali Karimzadeh
Akyüz, Uğurhan
Caner, Alp
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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New types of fiber-reinforced rubber-based seismic isolators have been a research interest for a number of engineers in the past decade. These new types of isolators can have similar seismic performances compared with the conventional ones. In most of the previous researches, the fiber-reinforced rubber-based isolators is usually manufactured with placing fiber sheets between precut rubber layers with the use of a bonding agent. This research differs from the previous researches in terms of manufacturing process, use of fiber mesh instead of fiber sheets, and use of lead in the core for some of the bearings. The aim of this research is to provide comparisons in fundamental seismic response properties of the new type of fiber mesh reinforced isolators and conventional isolators. In this scope, four pairs of fiber mesh reinforced elastomeric bearings and four pairs of steel-reinforced elastomeric bearings are subjected to various levels of compression stresses and cyclic shear strains under constant vertical pressure. The tested types of isolators are fiber mesh reinforced elastomeric bearing, fiber mesh reinforced elastomeric bearing with lead core, steel-reinforced elastomeric bearings, and steel-reinforced elastomeric bearings with lead core. In this research, steel-reinforced bearings are called conventional isolators. Themajor advantage for fibermesh reinforced bearings observed during the tests is that these isolators can develop a considerable low horizontal stiffness compared with the conventional isolators. The damping characteristics of the new and conventional types are similar to each other. Copyright (C) 2013 John Wiley & Sons, Ltd.
Subject Keywords
Geotechnical Engineering and Engineering Geology
,
Earth and Planetary Sciences (miscellaneous)
URI
https://hdl.handle.net/11511/38406
Journal
EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS
DOI
https://doi.org/10.1002/eqe.2345
Collections
Department of Civil Engineering, Article