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Evaluation of dynamic loads on a skew box girder continuous bridge - Part I : Field test and modal analysis

Ashebo, Demeke B., Chan, Tommy H.T., & Yu, Ling (2007) Evaluation of dynamic loads on a skew box girder continuous bridge - Part I : Field test and modal analysis. Engineering Structures, 29(6), pp. 1052-1063.

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Abstract

Field measurements were carried out to evaluate dynamic loads on an existing skew box girder continuous bridge. This paper presents the experimental procedure, the data acquisition system, the calibration test, the modal analysis and the load distribution in a transversal direction. A three-axle heavy truck was hired for use in the test to calibrate the field measurements. The static and dynamic bending moments of the tested bridge induced by the calibration truck were obtained. The relationship between the measured strain and bending moment were determined. Information on the dynamic behaviours of the bridge were obtained from an experimental and theoretical modal analysis. The influence of skewness on the static and dynamic behaviours of the bridge as well as on the load distribution in the transversal direction for the calibration truck and in-service vehicles was investigated. It was found that the influence of skew in both the static and dynamic behaviours of the bridge within the skew angle range of 0 degrees-30 degrees is very small.

Impact and interest:

13 citations in Scopus
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10 citations in Web of Science®

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ID Code: 12693
Item Type: Journal Article
Additional Information: For more information, please refer to the journal’s website (see hypertext link) or contact the author.
Keywords: skew bridge, field test, modal analysis, load distribution, box girder
DOI: 10.1016/j.engstruct.2006.07.014
ISSN: 0141-0296
Subjects: Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
Copyright Owner: Copyright 2007 Elsevier
Deposited On: 27 Feb 2008
Last Modified: 29 Feb 2012 23:53

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