Bridge health index considering deterioration mechanisms based on statistical analysis of visual inspection data

Yu Otake, Yusuke Honjo, Sasuga Takashi, Sato Atsushi

研究成果: Conference contribution

抄録

This paper presents the results of an evaluation of the bridge health index for 1325 bridges managed by the Gifu Prefectural authorities. The proposed bridge health index is statistically calculated using data from periodic inspections conducted by the authorities between 2001 and 2010. The database contains the results of five-step discrete data on many items set for decks, girders, expansions, shoes and accessories. The five-step grading is based on visual observation of the degree of deterioration for various members and components. However, due to the excessive amount of inspection items and components in bridges, the summarized grade obtained in this inspection is insufficient for making an effective repair and maintenance plan. Accordingly, indices that enable an overall evaluation of each bridge (or main components such as RC deck) are required. This study aims to express health indices for the RC decks of steel bridges and the PC girders of concrete bridges using an overall indices based on principal component analysis, which can clarify identify the health condition of the bridges with deterioration mechanism. Furthermore, the possibility of uniformly evaluation with RC decks and PC girders was considered.

本文言語English
ホスト出版物のタイトルLife-Cycle of Structural Systems
ホスト出版物のサブタイトルDesign, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014
編集者Mitsuyoshi Akiyama, Hitoshi Furuta, Dan M. Frangopol
出版社CRC Press/Balkema
ページ1973-1980
ページ数8
ISBN(印刷版)9781138001206
出版ステータスPublished - 2015
外部発表はい
イベント4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014 - Tokyo, Japan
継続期間: 2014 11月 162014 11月 19

出版物シリーズ

名前Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014

Other

Other4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014
国/地域Japan
CityTokyo
Period14/11/1614/11/19

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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