DYNAMIC AMPLIFICATION FACTOR OF ROAD BRIDGES – ANALYTICAL AND EXPERIMENTAL FINDINGS
DOI:
https://doi.org/10.7251/STP2215540LAbstract
This paper discusses the problem of theoretical and experimental determination of dynamic factors of road bridges. Various parameters influencing the dynamic behavior of bridges are briefly described and a review of regulations in this field is given. Also, an example of the numerical determination of the dynamic amplification factor on a specific bridge structure using dynamic time history analysis in SAP2000 software is presented. Some established methods for the experimental control of the design dynamic amplification on real structures are given, as well as a data and analysis of experimentally obtained results on a series of concrete bridges on the Banja Luka-Doboj highway.
References
S. P. Brady, E. J. O’Brien, and A. Znidarić, “The Effect of Vehicle Velocity on the Dynamic Amplification of a Vehicle crossing a Simply Supported Bridge,” Journal of Bridge Engineering, vol. 21, no. 2, 2006.
S. Savatović, R. Salatić, and Z. Mišković, “Vehicle speed influence on the dynamic factor of bridges,” 7th International conference - Contemporary achievements in civil engineering, Subotica, Serbia, 23-24. April 2019, pp 179-188.
E. Savin, “Dynamic amplification factor and response spectrum for the evaluation of vibrations,” Journal of Sound and Vibration, vol. 248, no. 2, pp. 267–288, 2001.
Y. Li, E. O'Brien, and A. González, “The development of a dynamic amplification estimator for bridges with good road profiles”, Journal of Sound and Vibration, vol. 293, no. 1–2, pp. 125–137, 2006.
A. González, P. Rattigan, E. J. O’Brien, and C. C. Caprani, “Determination of bridge lifetime dynamic amplification factor using finite element analysis of critical loading scenarios,” Engineering Structures, vol. 30, pp. 2330–2337, 2008.
M. F. Green and D. Cebon, “Dynamic interaction between heavy vehicles and highway bridges,” Computers and Structures, vol. 62, no. 2, pp. 253–264, 1997.
W. Roberts, “Dynamic Interaction of Vehicles and Bridges.” 7th International Svmposium on Heavy Vehicle Weights & Dimensions, Delft, Netherlands, June 16 - 20, 2002, pp. 423–432.
N. Lu, M. Beer, M. Noori, and Y. Liu, “Lifetime Deflections of Long-Span Bridges under Dynamic and Growing Traffic Loads,” Journal of Bridge Engineering, vol. 22, no. 11, p. 04017086, 2017.
I. Paeglite, J. Smirnovs, and A. Paeglitis, “Dynamic Behavior of Pre-stressed Slab Bridges,” Procedia Engineering, vol. 172, pp. 831–838, 2017.
I. Paeglite and A. Paeglitis, “The dynamic amplification factor of the bridges in Latvia,” Procedia Engineering, vol. 57, pp. 851–858, 2013.
I. Štimac, D. Meštrović, and I. Kožar, “Analiza mostovnih konstrukcija pobuđenih pokretnim opterećenjem,” Građevinar, vol. 56, pp. 347–353, 2004.
E. J. O’Brien, Y. Li, and A. González, “Bridge roughness index as an indicator of bridge dynamic amplification.” Computers and Structures, vol. 84 (12), pp. 759-769, 2006.
Štimac Grandić, D. Grandić, and R. Mužić, “Određivanje dinamičkog koeficijenta na mostovima,” Elektronički časopis Građevinskog fakulteta Osijek - e-GFOS, vol. 6, pp. 23–33, 2013.
L. Deng, Y. Yu, Q. Zou, and C. S. Cai, “State-of-the-Art Review of Dynamic Impact Factors of Highway Bridges,” Journal of Bridge Engineering, vol. 20, no. 5, p. 04014080, 2015.
“EN 1991-1-4: Eurocode 1: Actions on structures,” vol. 1, no. 2005, 2011.
H. Bruls, Aloïs, Calgaro, Jean-Armand, Mathieu, “ENV 1991 part 3: the main models of traffic loads on road bridges: background studies.” IABSE Colloquim, pp. 215–227, 1996.
“Pravilnik tehnickim normativima za odredivanje velicina opterecenja mostova,” Sl. list SFRJ, br. 1/91, 1991.
[18]D. Kuchárová and G. Lajčáková, “Moving Load Effect on Concrete Slab,” Procedia Engineering, vol. 190. pp. 326–333, 2017.
P. Paultre, O. Chaallal, and J. Proulx, “Bridge dynamics and dynamic amplification factors - a review of analytical and experimental findings,” The Canadian Journal of Civil Engineering, vol. 19, no. 2, pp. 260–278, 1992.
J. Yang, Y. Bai, X. Yang, and Y. Feng, “Dynamic Amplification Factor Measuring of T-girder Bridges,” Key Engineering Materials, vol. 540, pp. 29–36, 2013.
D. Janev, T. Arangelovski, D. Nakov, and G. Marakovski, “Methods for determination of the DAF from moving loads on RC bridges,” 18-ти Меѓународен Симпозиум на Друштвото на Градежните Конструктери на Македонија, Ohrid, Makedonija, 2-5. Oktobar 2019, pp. 868-877.
O. Chaallal and M. Shahawy, Experimental evaluation of the dynamic amplification factor for bridge performance, Department of Construction Engineering, University of Quebeck, Report No. ETS.DRSR.98.1, Jun 1998.
J. Benčat, and R. Kohár, "Bridges Subjected to Dynamic Loading", Bridge Engineering, London, United Kingdom: IntechOpen, 2018, [Online]. Available: https://www.intechopen.com/chapters/59297, doi: 10.5772/intechopen.73193
“SRPS U.M1.046:1985 - Ispitivanje mostova probnim opterecenjem", 1985.
