Time-domain analysis of wind-induced response of a suspension bridge in comparison with the full-scale measurements

Jungao Wang, Etienne Cheynet, Jasna Bogunovic Jakobsen, Jonas Snaebjornsson

Rannsóknarafurð: Kafli í bók/skýrslu/ráðstefnuritiRáðstefnuframlagritrýni

5 Tilvitnanir (Scopus)

Útdráttur

The present study compares the buffeting response of a suspension bridge computed in the time-domain with full-scale measurement data. The in-service Lysefjord Bridge is used as a study case, which allows a unique comparison of the computational results with full-scale buffeting bridge response observed during a one year monitoring period. The time-domain analysis is performed using a finite element approach. Turbulent wind field is simulated according to the governing bridge design standard in Norway for three different terrain categories. The time-domain analysis indicates that the non-linear components of the wind loading are of limited importance in the present case, contributing by less than 5% to the standard deviation of the lateral displacement. The contribution of the buffeting loads on the main cables, hangers and towers to the lateral dynamic response of the bridge girder is about 6%. With the time-domain method, mode coupling as well as the influence of cables and towers are well captured in the simulation results. The buffeting response, estimated in terms of the standard deviation of acceleration, is found to be in good agreement with the field measurement data. Comparison suggests that the proposed numerical method, with the non-linear force model, is able to predict the bridge response reasonably well.

Upprunalegt tungumálEnska
Titill gistiútgáfuStructures, Safety and Reliability
ÚtgefandiThe American Society of Mechanical Engineers(ASME)
ISBN-númer (rafrænt)9780791857663
DOI
ÚtgáfustaðaÚtgefið - 2017
ViðburðurASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017 - Trondheim, Noregur
Tímalengd: 25 jún. 201730 jún. 2017

Ritröð

NafnProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Bindi3B-2017

Ráðstefna

RáðstefnaASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017
Land/YfirráðasvæðiNoregur
Borg/bærTrondheim
Tímabil25/06/1730/06/17

Athugasemd

Publisher Copyright:
Copyright © 2017 ASME.

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