APPLICATION OF CLOSE-RANGE TERRESTRIAL PHOTOGRAMMETRY TO BRIDGE STRUCTURES. FINAL REPORT

A field applicatoion of close-range terrestrial photogrammetry to the measurement of small orrder of magnitude structural displacements and differences in elevation was conducted. A Jena UMK 10/1318 camera was used to take the photographs used in the evaluations. Measurements of the deflections of steel girders on several bridges suggest that accuracies on the order of 1/8-in can be achieved with normal care using the UMK 10/1318 camera. In addition, close-range terrestrial photogrammetry can be used for other bridge applications such as for deck condition surveys. By using this technique for condition surveys, the need for taking hand measurements and preparing sketches in the field is eliminated. The photographs provide a permanent record which can be used as a reference to evaluate potential changes in the condition of the deck or to gage structural movements. Where permanent records of bridge evaluations are desirable, the use of close-range photogrammetry should be considered. The UMK 10/1318 camera produced satisfactory results during the study and has been purchased by the Virginia Department of Highways and Transportation for close-range terrestrial applications. It is recommended that highway and bridge engineers be made aware of the capabilities of close-range photogrammetry.

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• Record URL:
  https://rosap.ntl.bts.gov/view/dot/19113
• Corporate Authors:

  Virginia Highway and Transportation Research Council

  Charlottesville, VA  United States 

  Virginia Department of Highways

  Traffic and Planning Division, 1221 East Broad Street
  Richmond, VA  United States  23219

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Hilton, M H
• Publication Date: 1985-6

Media Info

• Features: Figures; References; Tables;
• Pagination: 40 p.

Subject/Index Terms

• TRT Terms: Accuracy; Bridge decks; Bridges; Condition surveys; Deflection; Girders; Maintenance; Measurement; Photogrammetry
• Uncontrolled Terms: Bridge maintenance
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 00454805
• Record Type: Publication
• Report/Paper Numbers: FHWA-VA-85-40, VHTRC 85-R40
• Contract Numbers: 2053
• Files: NTL, TRIS, USDOT, STATEDOT
• Created Date: Jul 31 1987 12:00AM