Date of Publication :2nd March 2017
Abstract: Vibrations induced in bridges due to vehicles have a considerable impact on it. To study this effect profoundly the more accurate formulation to a sprung mass model of a vehicle running on bridge is stated in this paper. Numerical solution for finding responses of vehicle modeled as sprung mass model considering fundamental mode of vibration, using Newmark-beta method is explained. Dynamic responses, displacement, velocity and acceleration, obtained from this model are compared to the responses from moving load and moving mass model. Contribution of first few modes is analogized for different models. Vibration in bridge due to vehicle is function velocity of vehicle. Effects of this parameter on responses are evaluated on an old bridge
Reference :
-
- Biggs, J. (1964). Introduction to structural dynamics, McGraw-Hill, New York. Chapter 8: 325-315
- BIS (Bureau of Indian Standards). (1998). “Guidelines for the design of small bridges and culverts.” IRC:SP:13, New Delhi, India
- BIS (Bureau of Indian Standards). (1974). “Standard specification and code of practice for road bridges.” IRC:6: Section-II : Loads and Stresses, New Delhi, India
- Chopra, A. K. (2003), Dynamics of structures, 2nd Edition, Pearson Education. Chapter 16: 629-650
- Yang, Y. B., Lin, C. W.(2005) “Vehicle-bridge interaction dynamic and potential applications” Journal of Sound and Vibration, 284(2005), 205–226.
- Yang, Y., Yau, J. D.(1997) “Vehicle-bridge interaction element for dynamic analysis,” ASCE J. Struct. Eng. 123 (11) (1997) 1512–1518 (Errata: 124(4), 479).