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

被引：5
作者：
Cancellara, Donato [1 ]
De Angelis, Fabio [1 ]
Pasquino, Mario [1 ]
机构：
[1] Univ Naples Federico II, Dept Struct Engn, I-80125 Naples, Italy
来源：
ADVANCES IN CIVIL ENGINEERING II, PTS 1-4 | 2013年 / 256-259卷
关键词：
Base isolation system; Friction slider; Nonlinear modeling; Rubber bearing; CONSTITUTIVE RELATIONS; CONSISTENT FORMULATION; PLASTICITY; PROTECTION; BEHAVIOR; DAMPERS;
D O I：
10.4028/www.scientific.net/AMM.256-259.2185
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
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.
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收藏
页码：2185 / 2192
页数：8
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