Displacement measurement of an existing long span steel box-girder using terrestrial laser scanning

H. M. Lee, Y. H. Kwon, H. S. Park, I. Lee

Research output: Contribution to journalArticlepeer-review

Abstract

To make use of a new technology in the field of structural health monitoring, various displacement measuring techniques such as a global positioning system (GPS) and vision-based techniques have been studied and proposed. It was previously introduced a new displacement measuring technique using terrestrial laser scanning (TLS) that remotely samples the surface of an object using laser pulses and generates the three-dimensional (3D) coordinates of numerous points on the surface. In this paper, for an assessment of the capabilities of the measuring technique about existing structures, the field tests for vertical displacement measurement of an existing long span steel box-girder are experimentally carried out. The performance of the technique is evaluated by comparing the displacements obtained from TLS system and displacements directly measured from linear variable displacement transducer (LVDT).

Original languageEnglish
Pages (from-to)511-516
Number of pages6
JournalKey Engineering Materials
Volume347
DOIs
Publication statusPublished - 2007

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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