Vibration Characteristics of Kömürhan Highway Bridge Constructed with Balanced Cantilever Method
Publication: Journal of Performance of Constructed Facilities
Volume 23, Issue 2
Abstract
Kömürhan Highway Bridge is a reinforced concrete box girder bridge located on the 51st km of Elazığ–Malatya Highway over the Fırat River. Because of the fact that the Kömürhan Bridge is the only bridge in this part of Fırat, it has major logistical importance. So, this paper aims to determine dynamic characteristics such as natural frequencies, mode shapes, and damping ratios of the bridge using experimental measurements and finite-element analyses to evaluate current behavior. The experimental measurements are carried out by ambient vibration tests under traffic loads. Due to the expansion joint in the middle of the bridge, special measurement points are selected and experimental test setups are constituted. Vibration data are gathered from the both box girder and bridge deck. Measurement time, frequency span, and effective mode number are determined by considering similar studies and literature. The peak picking method in the frequency domain is used for the output-only modal identification. An analytical modal analysis is performed on the developed two- and three-dimensional finite-element model of the bridge using SAP2000 software to provide the analytical frequencies and mode shapes. At the end of the study, dynamic characteristics of the Elazığ and Malatya parts of the bridge obtained from the experimental measurements are compared with each other and transverse effects on the bridge are determined. Also, experimental and analytical dynamic characteristics are compared. Good agreement is found between dynamic characteristics in the all measurement test setups performed on the box girder and bridge deck and analytical modal analyses.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
This research was supported by the TUBITAK and Karadeniz Technical University under Research Grant Nos. 106M038, 2005.112.001.1, and 2006.112.001.1, respectively. Many thanks to Mehmet Fidan and Yavuzhan Taş, engineers at the 8th General Directorate of Highways, and K. Arman Domaniç, engineer at the Yüksel Domaniç Engineering Company, for supplying the logistical support.
References
Bayraktar, A., Altunışık, A. C., Sevim, B., and Türker, T. (2007a). “Modal testing and finite element model updating of an arch type steel footbridge.” Steel Compos. Struct., 7(6), 487–502.
Bayraktar, A., Altunışık, A. C., Türker, T., and Sevim, B. (2007b). “The model updating of historical masonry bridges using operational modal analysis method.” Symp., 1st Reinforcement and Transfer into the Future of Historical Structures, Ankara, Turkey, 429–440.
Bendat, J. S., and Piersol, A. G. (1986). Random data: Analysis and measurement procedures, Wiley, New York.
Felber, A. J. (1993). “Development of hybrid bridge evaluation system.” Ph.D. thesis, Univ. of British Columbia, Vancouver, B.C., Canada.
Guan, H. (2006). “Vibration-based structural health monitoring of highway bridges.” Ph.D. thesis, Univ. of California, San Diego.
OMA. (2006). “Operational modal analysis, release 4.0.” Structural Vibration Solution A/S, Denmark.
Peterson, S. T., Mclean, D. I., and Pollock, D. G. (2003). “Application of dynamic system identification to timber brides.” J. Struct. Eng., 129(1), 116–124.
PULSE. (2006). “Labshop, Version 11.2.2.” Brüel & Kjaer Sound and Vibration Measurement A/S.
Ren, W. X., Blanford, G. E., and Harik, I. E. (2004). “Roebling suspension bridge. I: Finite-element model and free vibration response.” J. Bridge Eng., 9(2), 110–118.
Ren, W. X., Peng, X. L., and Lin, Y. Q. (2005). “Experimental and analytical studies on dynamic characteristics of a large span cable-stayed bridge.” Eng. Struct., 27(4), 535–548.
Xia, H., De Roeck, G., Zhang, N., and Maeck, J. (2003). “Experimental analysis of a high-speed railway bridge under Thalys trains.” J. Sound Vib., 268(1), 103–113.
Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 23 • Issue 2 • April 2009
Pages: 90 - 99
Copyright
© 2009 ASCE.
History
Received: Apr 7, 2008
Accepted: Sep 15, 2008
Published online: Apr 1, 2009
Published in print: Apr 2009
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.