Imaging Tools for Evaluation of Gusset Plate Connections in Steel Truss Bridges Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/8w32r639w

This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Society of Civil Engineers and can be found at:  http://ascelibrary.org/toc/jbenf2/current.

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  • After the collapse of the I35W Bridge in Minneapolis, MN in 2007, transportation agencies began evaluating and rating their inventories of gusset plate connections. Connection evaluations require accurate drawings that detail the plate, member, and fastener geometries. These structural details should also accurately reflect the as-built conditions. For some connections, as-built information may not be available or the available drawings may not represent the actual field conditions. To fill this gap, a new methodology was developed that enables rapid and accurate collection of field measurements for connection plate geometry. The method uses close-range photogrammetry techniques to rectify images taken with consumer grade cameras using flat-field and fisheye lenses. The technique has been demonstrated on full-scale gusset plates in the laboratory and in the field. Dimensional measurements from the processed images provided results that are as good as or better than conventional field measurements and with tolerances below what most engineers require for calculation of gusset plate connection capacity. This technique provides a new tool for bridge engineers to quickly collect gusset plate geometry that can be used in connection evaluations and rating, and can further enhance bridge management tasks.
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  • Higgins, C. and Turan, O. (2013). ”Imaging Tools for Evaluation of Gusset Plate Connections in Steel Truss Bridges.” Journal of Bridge Engineering, 18(5), 380–387.
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  • description.provenance : Submitted by Deanne Bruner (deanne.bruner@oregonstate.edu) on 2013-06-20T23:50:16Z No. of bitstreams: 1 HigginsChristopherCivilConstructionEngineeringImagingToolsEvaluation.pdf: 881136 bytes, checksum: 4d1ab477b029c1db036ec7cb44bd52a7 (MD5)
  • description.provenance : Made available in DSpace on 2013-06-20T23:52:02Z (GMT). No. of bitstreams: 1 HigginsChristopherCivilConstructionEngineeringImagingToolsEvaluation.pdf: 881136 bytes, checksum: 4d1ab477b029c1db036ec7cb44bd52a7 (MD5) Previous issue date: 2013-05
  • description.provenance : Approved for entry into archive by Deanne Bruner(deanne.bruner@oregonstate.edu) on 2013-06-20T23:52:02Z (GMT) No. of bitstreams: 1 HigginsChristopherCivilConstructionEngineeringImagingToolsEvaluation.pdf: 881136 bytes, checksum: 4d1ab477b029c1db036ec7cb44bd52a7 (MD5)

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