Second International Conference on Rail Transportation
Dynamic Response of High-Speed Train Subjected to Stiffness Degradation of Simply Supported Bridge
Publication: ICRT 2021
ABSTRACT
The dynamic analysis model of simply supported bridge under 2-DOF spring-damper-spring mass variable-speed moving load was established by using variable-speed moving load to simulate vehicle crossing bridge with variable-speed, and its motion government equation is deduced in detail. The dynamic responses of simply supported bridge under different stiffness degradation coefficients, different moving speeds, and variable speed moving loads were studied by numerical analysis. The results show that the stiffness degradation of simply supported bridge will affect the dynamic response of bridges and vehicles. With the increase in stiffness degradation, the acceleration amplitude of frame and vehicle body increases, and the dynamic performance of bridges deteriorates. Load of low-speed moving vehicles is more sensitive to the stiffness degradation of bridges, and the impact decreases relatively at high-speed; with the increase of load moving acceleration, the same stiffness will be obtained. Under the degradation coefficient, the peak acceleration of the frame and the carbody increases, and the peak acceleration of the frame increases more.
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REFERENCES
Xia, H., Zhang, N., & Guo, W. (2018). Dynamic Analysis of Train-Bridge Coupling System. In Dynamic Interaction of Train-Bridge Systems in High-Speed Railways (pp. 227–289). Springer, Berlin, Heidelberg.
Xia, H., Zhang, N., & Guo, W. W. (2006). Analysis of resonance mechanism and conditions of train-bridge system. Journal of Sound and Vibration, 297(3–5), 810–822.
Yang, Y. B., Yau, J. D., Yao, Z., & Wu, Y. S. (2004). Vehicle-bridge interaction dynamics: with applications to high-speed railways. World Scientific.
Xiao, X. B., & Shen, H. M. (2002). Effect of speed of moving loads on dynamic responses of simply supported beam. Journal of southwest jiaotong university, 37(B11), 35–38.
Cai, C. B., & Zhai, W. M. (1997). Dynamic analysis of vertically coupled locomotive-track-bridge system. Journal of southwest jiaotong university, 32(6), 628–632.
Zhan, J.W., Xia, H., & An, N. (2012). Damage Diagnosis Method for Railway Bridges Based on Train Dynamic Responses. China Railway Science, 33(3), 37–41.
Chen, S.Y., Xia, H., & Gu, R.H.(2007). Dynamic Response Analysis of Simply-Supported Beam under Speed-Varying Loads. China Railway Science, 28(6), 41–46.
Tan, G.S. (2014). Whole Stiffness Reduction Study of Old Simple Supported Girder Based on Biberation. Transportation Science & Technology,(3), 17–19.
Wang, K.P., Xia, H., & Cao, Y.M. (2014). Dynamic response parameter analyses of simply-supported beam under moving load series. Journal of Vibration Engineering, (3), 362–369.
Li, X.Z., Shan, C.S., & Zhang, Z.J. (2013). Dynamic response analysis of beam bridge under the action of arbitrary moving mass spring train. Chinese Journal of Applied Mechanics, 30(05):693–699+801.
Yu, Z., & Xia, H. (2014). Bridge damage detection based on moving load induced structural response and wavelet analysis. Journal of Beijing Jiaotong University, 38(3), 55–61.
An, N., Xia, H., & Zhan, J.S. (2012). A identification method for bridge damage using cross-correlation function of responses induced by vehicles. Journal of Beijing Jiaotong University, 36(6), 74–78.
Zhu, X. Q., & Law, S. S. (2007). Damage detection in simply supported concrete bridge structure under moving vehicular loads.
Wahab, M. A., De Roeck, G., & Peeters, B. (1999). Parameterization of damage in reinforced concrete structures using model updating. Journal of Sound and Vibration, 228(4), 717–730.
Information & Authors
Information
Published In
ICRT 2021
Pages: 134 - 145
Editors: Wanming Zhai, Ph.D., Southwest Jiaotong University, Kelvin C. P. Wang, Ph.D., Oklahoma State University, and Shengyang Zhu, Ph.D., Southwest Jiaotong University
ISBN (Online): 978-0-7844-8388-6
Copyright
© 2022 American Society of Civil Engineers.
History
Published online: Feb 8, 2022
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