NDLI: Simulation of Bridge Vibrations Induced by High Speed Train Passages

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Simulation of Bridge Vibrations Induced by High Speed Train Passages

Content Provider	Semantic Scholar
Author	Flesch, Rainer
Copyright Year	2003
Abstract	Chapter 6 of the future European Code 1991-2 deals with the dynamic behaviour of railway bridges. Under certain conditions the quasistatic method can be used to elaborate the design forces. But in many cases time history analyses are requested, using each of 10 HSLM-A model trains and traveling speeds at regular intervals in the speed range 150 – 300 km/ h. The most important limiting factor is the allowable maximum deck acceleration, which is a major criterion for interoperability certification. The expense for dynamic analysis is considerable and should be limited to cases where it is absolutely necessary. At the moment all existing experience, whether dynamic analysis is necessary or quasistatic method is sufficient, is put together into practice – oriented diagrams. Additional parametric studies will be carried out in near future. Further, recommendations will be elaborated, whether a detailed 3D model is necessary or a beam model can be used. It is very important to calibrate the FE models using calculated as well as measured maximum deck accelerations. Hence, first measurements during 160 – 250 km/ h rides were carried out at a 3 span prestressed RC bridge in 2002. Further measurements are planned for 2004.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.sem-proceedings.com/22i/sem.org-IMAC-XXII-Conf-s07p03-Simulation-Bridge-Vibrations-Induced-by-High-Speed-Train-Passages.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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