Quantitative post evaluation of repair effect by visual inspection data

D. Mizutani, K. Kaito, K. Kobayashi

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

Abstract

When infrastructures deteriorate, they are repaired to recover their states. Enormous records of infrastructure ' s repair have already accumulated. However, there is few research of the repair effect evaluation. In this paper, the authors conduct the statistical deterioration prediction, and propose the post evaluation method of repair effects. The mixed Markov deterioration hazard model and its hierarchical Bayesian estimation are employed as concrete model and estimation method, and the heterogeneity between deterioration processes before and after the repair is evaluated quantitatively. In addition, through the relative evaluation of deterioration rates, the post evaluation of repair effects is conducted. The relative evaluation is carried out by using Wilcoxon singed rank test between heterogeneity parameters before and after the repair, and repair effects can be expressed quantitatively as the test statistic. Furthermore, the proposed method is applied to the inspection data and the repair data of RC slabs to verify its effectiveness empirically.

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
EditorsHitoshi Furuta, Dan M. Frangopol, Mitsuyoshi Akiyama
PublisherCRC Press/Balkema
Pages1923-1930
Number of pages8
ISBN (Print)9781138001206
DOIs
Publication statusPublished - 2015
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
Country/TerritoryJapan
CityTokyo
Period14/11/1614/11/19

ASJC Scopus subject areas

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

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