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2018 | OriginalPaper | Chapter

9. Dynamic Analysis of Train-Bridge System Under Differential Settlement and Scouring Effect of Foundations

Authors : He Xia, Nan Zhang, Weiwei Guo

Published in: Dynamic Interaction of Train-Bridge Systems in High-Speed Railways

Publisher: Springer Berlin Heidelberg

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Abstract

In this chapter, the influence of differential settlement and scouring effect of pier foundations on the dynamic responses of train-bridge system is studied. The influence factors of differential settlement and the mechanism of stream scouring effect of pier foundations are summarized. A prediction method for cumulative settlement of bridge foundations caused by cyclic train loading is proposed, and the differential settlement of existing bridge foundations induced by the construction of nearby bridge is studied by numerical simulation. Based on an engineering case, the influence of differential settlement of bridge foundations on the dynamic responses of train-bridge system is studied, and the train speed-settlement threshold curves for running safety and riding comfort of train are proposed. The calculation formulae of scouring depth are given, and the stiffness of a single pile and the equivalent stiffness of group-piles are studied, based on which the scouring effects on the stiffness of bridge foundations and the dynamic responses of train-bridge system are investigated.

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previous chapter Dynamic Analysis of Train-Bridge System Subjected to Collision Loads
next chapter Dynamic Analysis of Train-Bridge System Under Beam Deformation Induced by Concrete Creep and Temperature Effect
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Metadata
Title
Dynamic Analysis of Train-Bridge System Under Differential Settlement and Scouring Effect of Foundations
Authors
He Xia
Nan Zhang
Weiwei Guo
Copyright Year
2018
Publisher
Springer Berlin Heidelberg
Book
Dynamic Interaction of Train-Bridge Systems in High-Speed Railways

Print ISBN: 978-3-662-54869-1

Electronic ISBN: 978-3-662-54871-4

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-3-662-54871-4_9

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