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Proceedings Paper

Nondestructive damage detection and evaluation technique for seismically damaged structures
Author(s): Yukio Adachi; Shigeki Unjoh; Masuo Kondoh; Michio Ohsumi
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Paper Abstract

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 beam specimen test, the second method can detect the damage by rupture of intelligent sensors, such as optical fiber or carbon fiber reinforced plastic rod.

Paper Details

Date Published: 1 February 1999
PDF: 12 pages
Proc. SPIE 3587, Nondestructive Evaluation of Bridges and Highways III, (1 February 1999); doi: 10.1117/12.339935
Show Author Affiliations
Yukio Adachi, Public Works Research Institute (Japan)
Shigeki Unjoh, Public Works Research Institute (Japan)
Masuo Kondoh, Public Works Research Institute (Japan)
Michio Ohsumi, Public Works Research Institute (Japan)

Published in SPIE Proceedings Vol. 3587:
Nondestructive Evaluation of Bridges and Highways III
Steven B. Chase, Editor(s)

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