The effect of vibration on steel truss bridges

Reports from several parts of Indonesia were sent to the Directorate General of Bina Marga mentioning the excessive vibrations of the newly erected Callender Hamilton bridges due to dynamic loads obtained from traffic. In response to these reports a series of tests have been carried out covering seven bridges in java and one in bali, to study the effect of vibration exerted on those steel truss bridges. The study was made in collaboration with the EPD Consultants Ltd, England. The aim of the study of vibrations was to establish whether the following criteria could be satisfied: (1) adequate safeguards against fatigue failure and resistance to mechanical failure by failure of bolts or other parts of the bridge, (2) psychological acceptability such that users of the bridge do not feel distressed by the vibrations. Structural integrity including safeguards against fatigue failure related to dynamic loading caused by vibrations is covered by the use of an impact factor by which the basic stresses are multiplied. Psychological acceptability has arisen in recent years, however no definite limits have yet been established. Proposals to assess the acceptability are based on experiences obtained in developed countries, where people are exposed to considerable vibrations. At each bridge site readings were taken of approach road profile, vibration frequency, amplitude, acceleration and damping (a).

Language

  • English

Media Info

  • Pagination: 779-94
  • Monograph Title: Proceedings of the third conference of Road Engineering Association of Asia and Australasia. volume 1
  • Serial:
    • Volume: 1

Subject/Index Terms

Filing Info

  • Accession Number: 01438103
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 24 2012 9:22PM