Integration of bridge damage detection concepts and components, volume II : acceleration-based damage detection.

Details

• Creators:
  Rahmatalla, Salam ; Schallhorn, Charles ; Swadi, Ghedhban
• Corporate Creators:
  University of Iowa. Center for Computer-aided Design
• Subject/TRT Terms:
  • Structural health monitoring
  • Bridge management systems
  • Strain (Mechanics)
  • Bridges
  • Software
  • Algorithms
  • Validation
• Publication/ Report Number:
  IHRB Project TR-636
• Resource Type:
  Tech Report
• Geographical Coverage:
  Iowa
• Corporate Publisher:
  Iowa. Dept. of Transportation
• Abstract:
  In this work, a previously developed structural health monitoring (SHM) system was advanced toward a ready-for-implementation system. Improvements were made with respect to automated data reduction/analysis, data acquisition hardware, sensor types, and communication network architecture. ; The objective of this part of the project was to validate/integrate a vibration-based damage-detection algorithm with the strain-based methodology formulated by the Iowa State University Bridge Engineering Center. This report volume (Volume II) presents the use of vibration-based damage-detection approaches as local methods to quantify damage at critical areas in structures. ; Acceleration data were collected and analyzed to evaluate the relationships between sensors and with changes in environmental conditions. A sacrificial specimen was investigated to verify the damage-detection capabilities and this volume presents a transmissibility concept and damage-detection algorithm that show potential to sense local changes in the dynamic stiffness between points across a joint of a real structure. ; The validation and integration of the vibration-based and strain-based damage-detection methodologies will add significant value to Iowa’s current and future bridge maintenance, planning, and management
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/26668/dot_26668_DS1.pdf
• File Type:
  [PDF - 2.40 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:24be06e86f82fb6d7c2d4a159ad11f710d3342639962403d07e118a65035961711a3c8c26a517701a7f774c58a36338583a25b203083cf19b8a3d870f62e871a