Dynamic response of a multi-span, orthotropic bridge deck under moving truck loading with tandem axles
Youcef Fisli 1  
,  
Salah Guenfoud 1  
,  
Debra Laefer 2  
 
 
More details
Hide details
1
Applied Mechanics of New Materials Laboratory,University of 8 May 1945-Guelma, Algeria
2
Center for Urban Science and Progress and Department of Civil Engineering, Tandon School of Engineering Center for Urban Science and Progress, New York University, United States of America
CORRESPONDING AUTHOR
Abdelouahab Rezaiguia   

Applied Mechanics of New Materials Laboratory,University of 8 May 1945-Guelma, Algeria
Online publish date: 2019-10-14
Submission date: 2019-06-09
Final revision date: 2019-09-22
Acceptance date: 2019-10-12
 
KEYWORDS
TOPICS
ABSTRACT
A new three-dimensional vehicle with tandem axels is developed to determine dynamic response of bridge deck under load applying truck. The vehicle is modeled by a dynamic system with 9 degrees of freedom to accurately simulate the disposition and the intensity of loads on the bridge deck. The bridge deck is modeled by an orthotropic multi-span plate. The road surface irregularities are modeled by a random function characterized by a spectral roughness coefficient and power spectral density. The modal method is used to solve the equation of motion of the bridge deck. Equations of motion of the vehicle are obtained using the virtual work principle. The coupled equations of motion vehicle/bridge deck are integrated numerically by Newmark’s method. A computational algorithm is then elaborated to solve the integrated equations of motion with iterative process. A numerical example is presented. The resulting distribution of the Dynamic Amplification Factor (DAF) on the bridge deck does not reflect any particular trend, because high values can be obtained at points where the vertical displacement is small. The DAF is significant only under the interaction force. Thus, the road surface roughness was shown to have a significant influence on the dynamic vehicle/bridge deck interaction forces.
 
REFERENCES (11)
1.
Isabel GT. Analyse par éléments finis de l’interaction dynamique entre les trains et les ponts ferroviaires. Mémoire de Maître ès en Art, Université Laval, Canada, 2001.
 
2.
Zhu XQ, Law SS. Dynamic load on multi-lane bridge deck from moving vehicles. Journal of Sound and Vibration 2002; 251: 697-716. https://doi.org/10.1006/jsvi.2....
 
3.
Yang YB, Lin CW, Yau JD. Extracting bridge frequencies from the dynamic response of a passing vehicle. Journal of Sound and Vibration 2004; 272: 471-493. https://doi.org/10.1016/S0022-....
 
4.
Cai CS, Shi XM, Araujo M, Chen SR. Effect of approach span condition on vehicle-induced dynamic response of slab-on-girder road bridges. Engineering Structures 2007; 29: 3210–3226. https://doi.org/10.1016/j.engs....
 
5.
Yin X, Fang Z, Cai CS, Deng L. Non-stationary random vibration of bridges under vehicles with variable speed. Engineering Structures 2010; 32: 2166-2174. https://doi.org/10.1016/j.engs....
 
6.
Rezaiguia A. Vibroacoustic modelling of highway bridges crossing by moving vehicles. Doctorate Thesis, Annaba University, Algeria, 2008.
 
7.
Broquet C. Comportement des dalles de roulement des routes en béton sollicitées par le trafic routier. Thèse PhD., Ecole Polytechnique Fédéral, Lausanne, 1999.
 
8.
Rezaiguia A, Fisli Y, Ellagoune S, Laefer DF, Ouelaa N. Extension of semi- analytical approach to determine natural frequencies and mode shapes of a multi-span orthotropic bridge deck. Structural Engineering and Mechanics 2012; 43: 71-87. http://dx.doi.org/10.12989/sem....
 
9.
Henchi K. Dynamic analysis of bridges by finite elements method under mobile vehicles solicitation. PhD Thesis, Compiegne University of Technology, French, 1995.
 
10.
Henchi K, Fafard M, Talbot M, Dhatt G. An efficient algorithm for dynamic analysis of bridges under moving vehicles using a coupled modal and physical components approach. Journal of Sound and Vibration 1998; 212: 663-683. https://doi.org/10.1006/jsvi.1....
 
11.
Rezaiguia A, Laefer DF. Semi-analytical determination of natural frequencies and mode shapes of multi-span bridge decks. Journal of Sound and Vibration 2009; 328: 291-300. https://doi.org/10.1016/j.jsv.....
 
eISSN:2449-5220
ISSN:1641-6414