Damage Localization Method Using Vertical Support Reaction Data for Real-World Continuous Bridge

Damage localization of real-world continuous bridges with original random uncertainty is studied in this paper. By employing influence line analysis, an index termed as "Difference Index of Influence Line for Vertical Support Reaction (DIILSR)" has been presented. A damage localization method based on DIILSR has been established. A significant attraction of this method is that a comparatively small quantity of measurements is required because the number of bridge bearings is usually small. Damage position can be detected by comparing two DIILSR graphs before and after damage. If the slopes of two attachment lines between one point (x2=x' + m) and its two adjacent points change, it can be known that damage occurs within the region [x', x' + m] or [l - x' - m, l - x']. The effectiveness of the proposed method is demonstrated by a numerical simulation performed on a bridge with multiple damages.

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 447-454
  • Monograph Title: Sustainable Development of Critical Infrastructure

Subject/Index Terms

Filing Info

  • Accession Number: 01526781
  • Record Type: Publication
  • ISBN: 9780784413470
  • Files: TRIS, ASCE
  • Created Date: May 14 2014 3:02PM