An Instrument System for Measuring Pavement Deflections Produced by Moving Traffic Loads

Details

• Creators:
  Swift, Gilbert
• Corporate Creators:
  Texas Transportation Institute. Texas A&M University
• Corporate Contributors:
  Texas Highway Department ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Accelerometers
  • Analog computers
  • Bridge decks
  • Deflection
  • Feasibility analysis
  • Instrumentation
  • Loads
  • Motion
  • Motor vehicles
  • Pavement layers
  More +
• Publication/ Report Number:
  162-1F
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas ; United States
• Corporate Publisher:
  Texas Transportation Institute. Texas A&M University
• Abstract:
  This report describes a feasibility study which has led to the development of a "first generation" instrument system for measuring transient pavement deflections. Accelerometers embedded in the pavement structure are employed to sense the basic motion. Dual analog integration is utilized to obtain and record output indications proportional to displacement. The circuit characteristics are such that transient vertical movements as small as 0.002 inch, or horizontal movements as small as 0.0005 inch, occurring within less than two seconds can be recorded.
• Format:
  PDF
• Funding:
  2-8-72-162
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/84816/dot_84816_DS1.pdf
• File Type:
  [PDF - 1.22 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:0133e78468bc7e0ff18c9f7eddfd0e003bd3585683118d6a05a9e5f771af16e2d694f3e2c3312e916fb304485607b59bd74b7bf6955bcf99b9269a058f257e42