This paper discusses the importance of track irregularities in railway bridge design, and presents a new technique for calculating the dynamic impact load induced by such irregularities: the structural articulation method. The properties of the combined bridge-suspension system are coupled through global mass, stiffness, and damping matrices. Under the proposed method, the true suspension system over a particular point on the bridge girder at time t is divided into equivalent suspension systems attributed to adjacent finite-element nodes of the bridge. The time-dependent effects of a moving mass are thereby included in the equation of motion.
A structural articulation method for assessing railway bridges subject to dynamic impact loading from track irregularities
Vehicle System Dynamics ; 48 , 10 ; 1077-1095
2010-10-01
19 pages
Article (Journal)
Electronic Resource
Unknown
Automotive engineering | 2010
|Taylor & Francis Verlag | 2010
|Automotive engineering | 2010
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