Full scale monitoring of wind and traffic induced response of a suspension bridge

Etienne Cheynet*, Jasna Bogunović Jakobsen, Jónas Ór Snæbjörnsson

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)

Abstract

This paper presents a full-scale analysis of wind and traffic-induced vibrations of a long-span suspension bridge in complex terrain. Several wind and acceleration sensors have been installed along the main span on Lysefjord Bridge in Norway. In the present study, three days of continuous records are analysed. Traffic-induced vibrations are dominant at low and moderated wind speed, with non-negligible effects on the overall bridge response for heavy vehicles only. Traffic and wind-induced vibrations are compared in terms of root mean square of the acceleration response, and three simples approaches are proposed to isolate records dominated by wind-induced vibration. The first one relies on the separation of nocturnal and diurnal samples. The second one is based on the evaluation of the time-varying root mean square of the acceleration response. The last one evaluates the relative importance of the high frequency domain of the acceleration bridge response. It appears that traffic-induced vibrations may have to be taken into account for the buffeting analysis of long-span bridge under moderated wind.

Original languageEnglish
Article number04003
JournalMATEC Web of Conferences
Volume24
DOIs
Publication statusPublished - 19 Oct 2015
Event6th International Conference on Experimental Vibration Analysis for Civil Engineering Structures, EVACES 2015 - Dubendorf, Zurich, Switzerland
Duration: 19 Oct 201521 Oct 2015

Bibliographical note

Publisher Copyright:
© 2015 Owned by the authors, published by EDP Sciences.

Fingerprint

Dive into the research topics of 'Full scale monitoring of wind and traffic induced response of a suspension bridge'. Together they form a unique fingerprint.

Cite this