Seismic failure mode evaluation of bridges with deteriorated isolators

H. Matsuzaki, Y. Kubo, T. Tsumura, S. Unjoh

研究成果: Conference contribution

抄録

Isolated bridges are designed so that seismic energy is mainly dissipated at isolators. It is important that seismic safety and reparability of isolated bridges with deteriorated isolators are maintained as well as those with sound isolators. In this study, seismic failure modes of isolated bridges were evaluated considering uncertainties in the material and mechanical properties and aging deterioration of isolators. It was shown that response of isolated bridges is affected by deterioration of the lead core of the isolator and that failure probability of the isolator is mainly controlled by the rupture strain associated with deterioration of the rubber of the isolator.

This study was supported by JSPS KAKENHI Grant Number JP26420452. It is appreciated that strong ground motions were provided by K-NET and KiKnet of NIED, JMA, JAEE and NGA database of PEER.

本文言語English
ホスト出版物のタイトルMaintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018
編集者Nigel Powers, Dan M. Frangopol, Riadh Al-Mahaidi, Colin Caprani
出版社CRC Press/Balkema
ページ1029-1035
ページ数7
ISBN(印刷版)9781138730458
出版ステータスPublished - 2018
イベント9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018 - Melbourne, Australia
継続期間: 2018 7 92018 7 13

出版物シリーズ

名前Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018

Conference

Conference9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018
国/地域Australia
CityMelbourne
Period18/7/918/7/13

ASJC Scopus subject areas

  • 土木構造工学
  • 安全性、リスク、信頼性、品質管理

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