Full-scale monitoring of wind and suspension bridge response

J. T. Snæbjörnsson, J. B. Jakobsen, E. Cheynet, J. Wang

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

Monitoring of real structures is important for many reasons. For structures susceptible to environmental actions, full-scale observations can provide valuable information about the environmental conditions at the site, as well as the characteristics of the excitation acting on the structure. The recorded data, if properly analyzed, can be used to validate and/or update experiments and models used in the design of new structures, such as the load description and modelling of the structural response. Various aspects of full-scale monitoring are discussed in the paper and the full-scale wind engineering laboratory at the Lysefjord suspension bridge introduced. The natural excitation of the bridge comes from wind and traffic. The surrounding terrain is complex and its effect on the wind flow can only be fully studied on site, in full-scale. The monitoring program and associated data analysis are described. These include various studies of the relevant turbulence characteristics, identification of dynamic properties and estimation of wind- and traffic-induced response parameters. The overall monitoring activity also included a novel application of the remote optical sensing in bridge engineering, which is found to have an important potential to complement traditional "single-point" wind observations by sonic anemometers.

Original languageEnglish
Article number012007
JournalIOP Conference Series: Materials Science and Engineering
Volume276
Issue number1
DOIs
Publication statusPublished - 12 Dec 2017
Event1st Conference of Computational Methods in Offshore Technology, COTech 2017 - Stavanger, Norway
Duration: 30 Nov 20171 Dec 2017

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