Statistical damage identification techniques applied to the I-40 bridge over the Rio Grande River Metadata

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Title

  • Main Title Statistical damage identification techniques applied to the I-40 bridge over the Rio Grande River

Creator

  • Author: Doebling, S.W.
    Creator Type: Personal
  • Author: Farrar, C.R.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy. Office of the Assistant Secretary, Management and Administration.
    Contributor Type: Organization
    Contributor Info: USDOE Assistant Secretary for Management and Administration, Washington, DC (United States)

Publisher

  • Name: Los Alamos National Laboratory
    Place of Publication: New Mexico
    Additional Info: Los Alamos National Lab., NM (United States)

Date

  • Creation: 1998-03-01

Language

  • English

Description

  • Content Description: The statistical significance of vibration-based damage identification parameters is studied via application to the data from the tests performed on the Interstate 40 highway bridge in Albuquerque, New Mexico. A test of statistical significance is applied to the mean and confidence interval estimates of the modal properties and the corresponding damage indicators. The damage indicator used in this study is the change in the measured flexibility matrix. Previously presented deterministic results indicate that damage is detectable in all of the damage cases from these data sets. The results of this study indicate that the changes in both the modal properties and the damage indicators are statistically significant for all of the damage cases. However, these changes are distributed spatially for the first three damage cases and do not localize the damage until the fourth and final damage case.
  • Physical Description: 11 p.

Subject

  • Keyword: Statistics
  • Keyword: Nondestructive Testing
  • Keyword: Frequency Analysis
  • Keyword: Damage
  • Keyword: Bridges
  • Keyword: Mechanical Vibrations
  • STI Subject Categories: 42 Engineering Not Included In Other Categories

Source

  • Conference: 16. international modal analysis conference, Santa Barbara, CA (United States), 2-5 Feb 1998

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Other: DE98003424
  • Report No.: LA-UR--97-4401
  • Report No.: CONF-980224--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 642817
  • Archival Resource Key: ark:/67531/metadc691094

Note

  • Display Note: OSTI as DE98003424
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