Dynamic testing of a modern concrete bridge

  1. (PDF, 1 MB)
  2. Get@NRC: Dynamic testing of a modern concrete bridge (Opens in a new window)
AuthorSearch for: ; Search for:
Journal titleCanadian Journal of Civil Engineering
Pages447455; # of pages: 9
Subjectreinforced concrete; dynamic tests; bridges; Bridges; Traffic noise
AbstractA postensioned reinforced concrete bridge, slated for demolition, was tested to obtain its dynamic properties. The three-span, 10 year old bridge consisted of a continuous flat slab deck of variable thickness. The entire bridge was skewed and the deck was slightly curved in plan. The mode shapes, natural frequencies, and damping ratios for the lowest five natural modes of vibration, determined using sinusoidal forcing functions from an electrohydraulic shaker, were found to be highly dependent on the lateral properties of the bridge deck. Damping ratios were determined from the widths of resonance peaks. The modal properties from the steady state excitation were compared with those obtained from measurements of traffic-induced vibrations and good agreement was found between the two methods.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number17642
NPARC number20377762
Export citationExport as RIS
Report a correctionReport a correction
Record identifierc2e9559a-48fa-467e-95db-c23850c67f92
Record created2012-07-24
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)