Earthquake response prediction of seismically isolated buildings based on the response spectrum method considering changes in characteristics of lead rubber bearings due to repeated deformations

Earthquake response prediction of seismically isolated buildings based on the response spectrum method considering changes in characteristics of lead rubber bearings due to repeated deformations

Abstract In 2016, a countermeasure was announced against the Nankai Trough long‐period and long‐duration ground motions (LPGMs) in Japan. However, the response spectrum method (RSM), indicated by the Ministry of Construction notification Vol. 2009 (MCN), was out of the countermeasure. An RSM conside...

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Bibliographic Details
Main Authors: Masahito Kobayashi, Keita Sato, Kazunori Sato
Format: Article
Language:English
Published: Wiley 2023-01-01
Series:Japan Architectural Review
Subjects:
lead rubber bearing
long‐period and long‐duration ground motions
repeated deformations
response spectrum method
seismic isolation
simplified method
Online Access:https://doi.org/10.1002/2475-8876.12388
Description
Summary:Abstract In 2016, a countermeasure was announced against the Nankai Trough long‐period and long‐duration ground motions (LPGMs) in Japan. However, the response spectrum method (RSM), indicated by the Ministry of Construction notification Vol. 2009 (MCN), was out of the countermeasure. An RSM considering characteristic changes due to repeated deformations has also been proposed. However, since the damping correction formula of MCN was used, its applicability to LPMGs has not been sufficiently investigated. In this paper, a method is proposed to evaluate the influence of characteristic changes due to repeated deformations using RSM for LPGMs and seismically isolated buildings using the lead plug‐inserted laminated rubber (LRB).
ISSN:2475-8876

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