Cable-Stayed Bridge Loads Caused by Traffic Congestion on the Deck Measured with Bridge Monitoring System

Authors

DOI:

https://doi.org/10.7250/bjrbe.2021-16.524

Keywords:

cable-stayed bridge, forces in stays, influence functions, loads, monitoring, traffic congestion

Abstract

Structural safety of a bridge depends, among other things, on the number of vehicles passing on its deck, their weights and distribution of loads to their axes. A large number of vehicles can accumulate on the bridge in a controlled state, i.e., during an acceptance test including load testing, and during traffic congestion on the bridge, which is a fortuitous event addressed in this paper. The paper deals with the analysis of load intensity on one bridge carriageway when it is fully and randomly filled during traffic congestion. The influence functions of the forces in the cables are used to determine the effects of loads exerted by the vehicles moving at very low speed. Effects of such loads are studied considering an exemplary cable-stayed bridge. Since the measurement basis was limited, the iterative algorithm was used. It consists in shortening the girder sections under analysis to the area appropriate for determining the load in each successive step of iteration. Ineffectiveness of the traditional algorithm, where the determined system of equations is resolved, is an important premise for using such algorithm. The results of numerical analysis show that the load intensity caused by traffic congestion is relatively high. It has been demonstrated that the matrix method may be successfully used to determine the real load of bridges on the basis of selected parameters measured in the bridge structure, also for complex scheme bridges, including the cable-stayed bridges.

References

Arellano, H., Gomez, R., & Tolentino, D. (2019). Parametric Analysis of Multi-Span Cable-Stayed Bridges Under Alternate Loads. Baltic Journal of Road and Bridge Engineering, 14(4), 543–567. https://doi.org/10.7250/bjrbe.2019-14.457

Eurocode 1. (2003). EN 1991-2: Traffic Loads on Bridges.

González, A., Rowley, C., & OBrien, E. J. (2008). A General Solution to the Identification of Moving Vehicle Forces on a Bridge. Interantional. Journal of Numerical Methods in Engineering, 75(3), 335–354. https://doi.org/10.1002/nme.2262

Hajdin, N., Stipanic, B., Krawczyk, J., & Wachalski, K. (2004). The Roadway Bridge Over Vistula River in Plock (Poland). In Proceedings of the 5th International Conference on Bridges across the Danube, Bridges in Danube Basin (pp. 359–370).

Helmi, K., Bakht, B., & Mufti, A. (2014). Accurate Measurements of Gross Vehicle Weight Through Bridge Weigh-in-Motion: A Case Study. Journal of Civil Structural Health Monitoring, 4, 195–208. https://doi.org/10.1007/s13349-014-0076-5

Hildebrand, M., Biliszczuk, J., & Berger, A. (2008). Monitoring System for a Cable-Stayed Bridge in Plock. In 17th Congress of IABSE, Creating and Renewing Urban Structures (pp. 554–555). U.S., Chicago.

Inaudi, D. (2009). Overview of 40 Bridge Structural Health Monitoring Projects. In International Bridge Conference IBC. USA, Pittsburgh, 15–17 June 2009.

Lydon, M., Taylor, S. E., Robinson, D., Mufti, A., & Brien, E. J. O. (2016). Recent Developments in Bridge Weigh in Motion (B-WIM). Journal of Civil Structural Health Monitoring, 6, 69–81. https://doi.org/10.1007/s13349-015-0119-6

Machelski, C., & Hildebrand, M. (2015). Estimation of Influences on a Cable-Stayed Bridge on the Basis of Force Changes in the Stays Recorded by Monitoring System. Journal of Civil Structural Health Monitoring, 5, 1–9.

Machelski C., & Janusz, L. ( 2017). Application of Results of Test in Developing 2D Model for Soil–Steel Railway Bridges. Journal of Transportation Research Board, 2656(1), 53–60. https://doi.org/10.3141/2656-06

Papadrakakis, M., & Sapountzakis, W. (2018). Matrix Methods for Advanced Structural Analysis. Butterworth-Heinemann. https://doi.org/10.1016/C2016-0-01553-X

Rowley, C. W., OBrien, E. J., Gonzalez, A., & Žnidarič, A. (2009). Experimental Testing of a Moving Force Identification Bridge Weigh-in-Motion Algorithm. Experimental Mechanics, 49, 743–746. https://doi.org/10.1007/s11340-008-9188-3

Straupe, V., & Paeglitis, A. (2012). Analysis of Interaction Between the Elements in Cable-Stayed Bridge. Baltic Journal of Road and Bridge Engineering, 7(2), 84–91. https://doi.org/10.3846/bjrbe.2012.12

Wenzel, H. (2009). The Character of SHM in Civil Engineering. In C. Boller, F.-K. Chang, & Y. Fujino (Eds.), Encyclopedia of Structural Health Monitoring. John Wiley & Sons. https://doi.org/10.1002/9780470061626.shm156

Zienkiewicz, O. C., & Taylor, R. L. (2000). The Finite Element Method (5th ed.). Butterworth-Heinemann.

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Published

21.06.2021

How to Cite

Machelski, C., & Hildebrand, M. (2021). Cable-Stayed Bridge Loads Caused by Traffic Congestion on the Deck Measured with Bridge Monitoring System. The Baltic Journal of Road and Bridge Engineering, 16(2), 66-89. https://doi.org/10.7250/bjrbe.2021-16.524