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

Yu Otake, Yusuke Honjo, Sasuga Takashi, Sato Atsushi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationLife-Cycle of Structural Systems
Subtitle of host publicationDesign, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014
EditorsMitsuyoshi Akiyama, Hitoshi Furuta, Dan M. Frangopol
PublisherCRC Press/Balkema
Pages1973-1980
Number of pages8
ISBN (Print)9781138001206
Publication statusPublished - 2015 Jan 1
Externally publishedYes
Event4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014 - Tokyo, Japan
Duration: 2014 Nov 162014 Nov 19

Publication series

NameLife-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
CountryJapan
CityTokyo
Period14/11/1614/11/19

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

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  • Cite this

    Otake, Y., Honjo, Y., Takashi, S., & Atsushi, S. (2015). Bridge health index considering deterioration mechanisms based on statistical analysis of visual inspection data. In M. Akiyama, H. Furuta, & D. M. Frangopol (Eds.), Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014 (pp. 1973-1980). (Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014). CRC Press/Balkema.