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Erschienen in:
Evaluating Fatigue Resistance of FRP-Strengthened RC Bridge Decks Subjected to Repeated Wheel Load Kapitel lesen Erstes Kapitel lesen

2018 | OriginalPaper | Buchkapitel

An Implicit-Explicit Transition Method for Settlement Prediction of High-Speed Railway Subgrade Under High-Cycle Load

verfasst von : Zongqi Bi, Quanmei Gong, Zhuang Kang, Liushan Wang

Erschienen in: Environmental Vibrations and Transportation Geodynamics

Verlag: Springer Singapore

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Abstract

The long-term settlement of high speed railway subgrade under high-cycle traffic loads is difficult to be calculated and predicted accurately. The implicit-explicit transition algorithm is an effective way to solve this problem, but the applicability of the proposed method is still to be verified, and there is room for improvement. In this paper, a boundary surface model is used as the constitutive model for the implicit computation. In the stage of explicit calculation, an improved empirical formula is proposed by synthesizing the correction index model and HCA model. And the implicit-explicit transition calculation process is realized through secondary development method in the finite element platform. On the basis of this, parameters of loading history and number of load steps are introduced, which can improve the accuracy of the calculation results. Through the simulation of a section of Shanghai Nanjing Intercity High Speed Railway, the predicted value is in good agreement with the measured data.

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Vorheriges Kapitel Effect of Metro Excavation on Soft Clay’s Displacement and Strength Behaviors Based on In-situ Tests
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Metadaten
Titel
An Implicit-Explicit Transition Method for Settlement Prediction of High-Speed Railway Subgrade Under High-Cycle Load
verfasst von
Zongqi Bi
Quanmei Gong
Zhuang Kang
Liushan Wang
Copyright-Jahr
2018
Verlag
Springer Singapore
Buch
Environmental Vibrations and Transportation Geodynamics

Print ISBN: 978-981-10-4507-3

Electronic ISBN: 978-981-10-4508-0

Copyright-Jahr: 2018

DOI
https://doi.org/10.1007/978-981-10-4508-0_73