A semi-automatic member detection for metal bridges

Liiili Truong-Hong, Debra F. Laefer

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Terrestrial laser scanners (TLSs) are prominent non-contact instruments for acquiring highly detailed geometries of bridge components in only minutes. A TLS can be a strategic instrument for data collection for bridge inspection and documentation, because it can reduce significantly required field time and auxiliary equipment. To deploy a TLS in this field, a semi-automatic method for post-processing a point cloud for documentation of a historic metal bridge is proposed. In this work, generating 3D model of existing structural members and identifying connection characteristics are mainly of interest. The Guinness Bridge built in 1880s in Dublin, Ireland is presented as a case study for the proposed semi-automatic workflow.

Original languageEnglish (US)
Title of host publicationIABSE Conference, Nara 2015
Subtitle of host publicationElegance in Structures - Report
PublisherInternational Association for Bridge and Structural Engineering (IABSE)
Number of pages2
ISBN (Electronic)9783857481383
StatePublished - 2015
EventIABSE Conference, Nara 2015: Elegance in Structures - Nara, Japan
Duration: May 13 2015May 15 2015

Publication series

NameIABSE Conference, Nara 2015: Elegance in Structures - Report


OtherIABSE Conference, Nara 2015: Elegance in Structures


  • Connection
  • Damage
  • Documentation
  • Historic mental bridge
  • Point cloud
  • Terrestrial laser scanning

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction


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