Response of Timber Bridge to Traffic Loading
Publication: Journal of Bridge Engineering
Volume 6, Issue 1
Abstract
This paper summarizes results from an analytical and experimental study of the response to traffic loading of a glued-laminated timber bridge. A numerical model to simulate the passage of a vehicle over a bridge was developed. Calculated modal characteristics of an existing bridge were compared with results of ambient vibration and hammer impact testing. The analysis was used to simulate passages over the bridge of a three-axle vehicle, an empty logging truck, and results were compared with experimental data for such loading. The numerical model was then used to simulate the bridge response to a fully loaded logging truck. Results of these simulations were used to study dynamic amplification factors and to assess dynamic provisions of the new Canadian Highway Bridge Design Code.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
American Association of State Highway Officials (AASHO). ( 1961). “AASHO road test, history and description of project (1961).” HRB Special Rep. 61A, NAS-NRC Publication 816, Washington, D.C.
2.
Bat'a, M., ılý, V., and Polák, M. ( 1994). “Modal analysis and analysis of dynamic system bridge structure: moving vehicles.” Proc., 12th Int. Modal Analysis Conf., Honolulu, 694–700.
3.
Billing, J. R., and Agarwal, A. C. ( 1990). “The art and science of dynamic testing of highway bridges.” Developments in short and medium span bridge engineering 1990, B. Bakht, R. Dorton, and L. Jaeger, eds., Canadian Society for Civil Engineering, Ottawa.
4.
Canadian Highway Bridge Design Code. ( 1997). Canadian Standards Association, Ottawa.
5.
Cantieni, R. ( 1992). “Dynamic behavior of highway bridges under the passage of heavy vehicles.” Rep. No. 20, Swiss Federal Laboratories for Materials Testing and Research, Dübendorf, Switzerland.
6.
Clough, R. W., and Penzien, J. ( 1993). Dynamics of structures, 2nd Edition. McGraw–Hill, New York.
7.
Drosner, S. ( 1989). “Beitrag zur Berechnung der dynamischen Beanspruchungen von Brücken unter Verkehrslast.” PhD thesis, RWTH Aachen, Fakultät für Bauingenieur und Vermessungswesen (in German).
8.
Felber, A. J. ( 1993). “Development of a hybrid bridge evaluation system.” PhD thesis, University of British Columbia, Vancouver, Canada.
9.
Frýba, L. ( 1972). Vibration of solids and structures under moving loads, Noordhoff International Publishing, Groningen, The Netherlands.
10.
Green, M. F., Cebon, D., and Cole, D. J. (1995). “Effects of vehicle suspension design on dynamics of highway bridges.”J. Struct. Engrg., ASCE, 121(2), 272–282.
11.
Horyna, T. ( 1995). “Dynamic analysis of bridges with laminated wood girders.” MS thesis, University of British Columbia, Vancouver, Canada.
12.
Horyna, T., Ventura, C. E., and Foschi, R. O. ( 1996). “Modal characteristics of timber bridges under traffic loading.” Proc., 14th Int. Modal Anal. Conf., Dearborn, Mich., 226–233.
13.
Humar, J. L., and Kashif, A. H. (1995). “Dynamic response analysis of slab-type bridges.”J. Struct. Engrg., ASCE, 121(1), 48–62.
14.
Kajikawa, Y., and Honda, H. ( 1987). Studies of bridge vibration over twenty years, Japan Research Committee on Bridge Vibration.
15.
Mitchell, C. G. ( 1987). “The effect of the design of goods vehicle suspensions on loads on roads and bridges.” Res. Rep. 115, TRRL Department of Transport, London.
16.
Molina, F. J., Cantieni, R., and Pietrzko, S. ( 1995). “Traffic response of a bridge as predicted from modal test data.” Proc., 13th Int. Modal Anal. Conf., Nashville, 1171–1177.
17.
Nassif, H. H., and Nowak, A. S. ( 1995). “Dynamic load spectra for girder bridges.” Transp. Res. Rec. No. 1476, Transportation Research Board, Washington, D.C. 69–83.
18.
Nicol-Smith, C. A. ( 1988). “Why glulam isn't used in bridges anymore—British Columbian experience with logging bridges.” Int. Conf. on Timber Engrs., Seattle.
19.
Nowak, A. S., and Hong, Y.-K. (1991). “Bridge live load models.”J. Struct. Engrg., ASCE, 117(9), 2757–2767.
20.
Paultre, P., Chaallal, O., and Proulx, J. ( 1992). “Bridge dynamics and dynamic amplification factors—A review of analytical and experimental findings.” Can. J. Civ. Engrg., Ottawa, 19, 260–278.
21.
Schuster, N. D. ( 1994). “Dynamic characteristics of a 30 storey building during construction detected from ambient vibration measurements.” MS thesis, University of British Columbia, Vancouver, Canada.
22.
Shelley, S. J., Lee, K. L., Aksel, T., and Aktan, A. E. (1995). “Active-control and forced vibration studies on highway bridge.”J. Struct. Engrg., ASCE, 121(9), 1306–1312.
23.
U2, V2 and P2 manual. (1994). EDI Ltd., Vancouver, Canada.
24.
Ventura, C. E., Felber, A. J., and Prion, H. G. L. ( 1994). “Seismic evaluation of a long span bridge by modal testing.” Proc., 12th Int. Modal Anal. Conf., Honolulu, 1309–1316.
25.
Weaver, W., Jr. and Johnston, P. R. ( 1987). Structural dynamics by finite elements, Prentice-Hall, Englewood Cliffs, N.J.
Information & Authors
Information
Published In
History
Received: Feb 18, 1999
Published online: Feb 1, 2001
Published in print: Feb 2001
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.