Experimental damage diagnosis of steel frames using strain mode shape

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

Abstract

This paper presents a structural damage diagnosis technique by means of vibration signature analysis. Because Strain Mode Shape (SMS) will reflect the internal force distribution in a structure, any damage that resulted in the change of the latter will be shown in the former. The magnitude of the changes is related to the severity of the internal force redistribution. In most structures force redistribution is the greatest around the damaged zone, therefore the location of damage is implicitly identified by the severity of the SMS change. Two steel model frames were tested in laboratory to verify the sensitivity of this technique when subjected to different types of damage. Test results show that location of damage in a structure can be found by using this approach.

Original languageEnglish
Title of host publicationStructures Under Shock and Impact II
PublisherPubl by Computational Mechanics Publ
Pages447-467
Number of pages21
ISBN (Print)1853121703
Publication statusPublished - 1992 Dec 1
EventProceedings of the Second International Conference on Structures Under Shock and Impact II - Portsmouth, Engl
Duration: 1992 Jun 161992 Jun 18

Publication series

NameStructures Under Shock and Impact II

Other

OtherProceedings of the Second International Conference on Structures Under Shock and Impact II
CityPortsmouth, Engl
Period92-06-1692-06-18

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Yao, G. C., & Chang, K. C. (1992). Experimental damage diagnosis of steel frames using strain mode shape. In Structures Under Shock and Impact II (pp. 447-467). (Structures Under Shock and Impact II). Publ by Computational Mechanics Publ.