Incorporating noise effect in damage detection with a curvature based method

Zhen Sun, Tomonori Nagayama, Yozo Fujino

Abstract

Damage detection is essential for ensuing safety of bridges, and many damage detection methods have been developed in the past few years, which utilizes static or dynamic responses. In this paper, a curvature-based method is proposed for damage detection. In order to verify its reliability and efficacy, laboratory experiment is conducted on a beam specimen, and the measured displacement is used to identify damage with the proposed method. Damage location and severity were both identified. Taking into account measurement noise, two techniques are proposed to reduce effect of measurement noise. The first one uses averaged multiple measurement, and the other one chooses reasonable interval for curvature calculation. They are both verified with the measurements from the laboratory test.

Original languageEnglish
Title of host publicationIABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions - Report
PublisherInternational Association for Bridge and Structural Engineering (IABSE)
Pages506-513
Number of pages8
ISBN (Electronic)9783857481420
StatePublished - 2016
EventIABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions - Guangzhou, China

Other

OtherIABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions
CountryChina
CityGuangzhou
Period16/5/816/5/11

Fingerprint

Damage detection
Dynamic response
Experiments

Keywords

  • Curvature change
  • Curvature-based
  • Damage detection
  • Maxwell-betti reciprocity theorem
  • Measurement noise

ASJC Scopus subject areas

  • Building and Construction

Cite this

Sun, Z., Nagayama, T., & Fujino, Y. (2016). Incorporating noise effect in damage detection with a curvature based method. In IABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions - Report. (pp. 506-513). International Association for Bridge and Structural Engineering (IABSE).

Incorporating noise effect in damage detection with a curvature based method. / Sun, Zhen; Nagayama, Tomonori; Fujino, Yozo.

IABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions - Report. International Association for Bridge and Structural Engineering (IABSE), 2016. p. 506-513.

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

Sun, Z, Nagayama, T & Fujino, Y 2016, Incorporating noise effect in damage detection with a curvature based method. in IABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions - Report. International Association for Bridge and Structural Engineering (IABSE), pp. 506-513, IABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions, Guangzhou, China, 8-11 May.
Sun Z, Nagayama T, Fujino Y. Incorporating noise effect in damage detection with a curvature based method. In IABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions - Report. International Association for Bridge and Structural Engineering (IABSE). 2016. p. 506-513.

Sun, Zhen; Nagayama, Tomonori; Fujino, Yozo / Incorporating noise effect in damage detection with a curvature based method.

IABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions - Report. International Association for Bridge and Structural Engineering (IABSE), 2016. p. 506-513.

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

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