@article{ref1,
title="A structural articulation method for assessing railway bridges subject to dynamic impact loading from track irregularities",
journal="Vehicle system dynamics",
year="2010",
author="Gu, G. and Lilley, D. M. and Franklin, F. J.",
volume="48",
number="10",
pages="1077-1095",
abstract="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.<p />",
language="en",
issn="0042-3114",
doi="10.1080/00423110903337273",
url="http://dx.doi.org/10.1080/00423110903337273"
}