Nondestructive damage detection and evaluation technique for seismically damaged structures

Yukio Adachi, Shigeki Unjoh, Masuo Kondoh, Michio Ohsumi

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


The development of quantitative damage detection and evaluation technique, and damage detection technique for invisible damages of structures are required according to the lessons from the 1995 Hyogo-ken Nanbu earthquake. In this study, two quantitative damage sensing techniques for highway bridge structures are proposed. One method is to measure the change of vibration characteristics of the bridge structure. According to the damage detection test for damaged bridge column by shaking table test, this method can successfully detect the vibration characteristic change caused by damage progress due to increment excitations. The other method is to use self-diagnosis intelligent materials. According to the reinforced concrete (RC) beam specimen test, the second method can detect the damage by rupture of intelligent sensors, such as optical fiber or carbon fiber reinforced plastic (CFRP) rod.

Original languageEnglish
Pages (from-to)60-71
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1999 Mar 3
Externally publishedYes
EventProceedings of 1999 Nondestructive Evaluation of Bridges and Highways III - Newport Beach, CA, USA
Duration: 1999 Mar 31999 Mar 5

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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