Response estimation for a floating bridge using acceleration output only

Øyvind Wiig Petersen, Ole Øiseth, Torodd Skjerve Nord, Eliz Mari Lourens

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)
18 Downloads (Pure)

Abstract

The Norwegian Public Roads Administration is reviewing the possibility of using floating bridges as fjord crossings. The dynamic behaviour of very long floating bridges with novel designs are prone to uncertainties. Studying the dynamic behaviour of existing bridges is valuable for understanding the in-situ performance. We present a case study of the Bergsøysund Bridge, a 840 m long floating pontoon bridge located in Norway. An extensive monitoring system is installed on the bridge, including a network of accelerometers. A finite element model of the bridge is established. Using the measured acceleration output and recently developed Kalman filter based methods (a joint input-state (JIS) estimation algorithm and a dual Kalman filter (DKF)), we estimate accelerations at unmeasured locations. It is shown that the estimated response from the DKF agrees well with direct reference measurements. For the JIS, numerical instabilities in the estimates occur due to ill-conditioning of the matrices used in the system inversion.

Original languageEnglish
Title of host publicationProceedings of ISMA 2016 - International Conference on Noise and Vibration Engineering
Subtitle of host publication and USD2016 - International Conference on Uncertainty in Structural Dynamics
EditorsP. Sas, D. Moens, A. van de Walle
PublisherKU Leuven
Pages613-625
Number of pages13
ISBN (Electronic)9789073802940
Publication statusPublished - 2016
Event27th International Conference on Noise and Vibration Engineering and International Conference on Uncertainty in Structural Dynamics - Leuven, Belgium
Duration: 19 Sep 201621 Sep 2016
https://www.mech.kuleuven.be/en/pma/events/isma-2016

Conference

Conference27th International Conference on Noise and Vibration Engineering and International Conference on Uncertainty in Structural Dynamics
Abbreviated titleISMA 2016 and USD2016
CountryBelgium
CityLeuven
Period19/09/1621/09/16
Internet address

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