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7122408 
Journal Article 
A novel seismic base isolation system consisting of a lead rubber bearing in series with a friction slider. Part I: nonlinear modeling of the system 
Cancellara, D; De Angelis, F; Pasquino, M; , 
2013 
TRANS TECH PUBLICATIONS LTD 
DURNTEN-ZURICH 
2185-2192 
WOS:000317696001114 
In this paper a new seismic base isolator, called High Damping Hybrid Seismic Isolator (HDHSI), is proposed. It is obtained by the assembly in series of a Lead Rubber Bearing (LRB) and a Friction Slider (FS) with a high friction coefficient. The HDHSI device is in contrast with the Resilient-Friction Base Isolator (R-FBI) with the aim of optimizing the Electricite De France (EDF) system. The mathematical model of a structure base isolated by a HDHSI system is analyzed with a two Degree of Freedom System (2-DOF) in which the superstructure is assimilated to a rigid body. Nonlinear finite elements are adopted for modeling the HDHSI device. A dynamic nonlinear analysis is performed and the hysteretic cycles are derived and evaluated for the single components and for the innovative HDHSI device. 
Zhang, XD; Li, HN; Feng, XT; Chen, ZH; 
978-3-03785-565-2 
2nd International Conference on Civil Engineering and Transportation (ICCET 2012) 
Guilin, PEOPLES R CHINA