Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

For very narrow results

When looking for a specific result

Best used for discovery & interchangable words

Recommended to be used in conjunction with other fields

Dates

to

Document Data
Library
People
Clear All
Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Application of close-range terrestrial photogrammetry to bridge structures : final report.

Filetype[PDF-2.21 MB]


English
Details You May Also Like

Details:

  • Creators:
    Hilton, Marvin H
  • Corporate Creators:
    Virginia Highway & Transportation Research Council
  • Subject/TRT Terms:
  • Publication/ Report Number:
    VHTRC 85-R40
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    Virginia
  • Corporate Publisher:
    Virginia Transportation Research Council (VTRC)
  • Abstract:
    A field application of close-range terrestrial photogrammetry to the measurement of small order 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 i/8 in can be achieved with normal care using the MK 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.
  • Format:
    PDF
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files
More +

You May Also Like

Checkout today's featured content at rosap.ntl.bts.gov