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Identification of effective properties of the railway substructure in the low-frequency range using a heavy oscillating unit on the track
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.
Faculty of Civil Engineering and Geoscience, Delft University of Technology (TUDelft).
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.
2010 (English)In: Archive of applied mechanics (1991), ISSN 0939-1533, E-ISSN 1432-0681, Vol. 80, no 9, 959-968 p.Article in journal (Refereed) Published
Abstract [en]

As the demand for predictions of train-induced vibrations is increasing, it is essential that adequate parameters of the railway structure are given as input in the predictions. Gathering this information can be quite time-consuming and costly, especially when predictions are required for the low-frequency emission. This article presents a procedure for deriving the effective properties of the foundation under the sleepers of a railway track from measurements taken with a heavy oscillating unit on the track. The unit consists of two masses inside a modified freight car that exert a dynamic force in the range 3-30 Hz on one of the two axles. The ratio of force applied on the axle over the resulting response measured with an accelerometer is studied. The foundation of the sleepers is modelled using a frequency-dependent complex-valued dynamic stiffness.

Place, publisher, year, edition, pages
2010. Vol. 80, no 9, 959-968 p.
Keyword [en]
Embankment, Flexibility, Railway, Stiffness, Track, Train
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:kth:diva-9473DOI: 10.1007/s00419-009-0348-4ISI: 000280226000001Scopus ID: 2-s2.0-77957869462OAI: oai:DiVA.org:kth-9473DiVA: diva2:114128
Note
QC 20100921. Uppdaterad från submitted till published (20100921).Available from: 2008-11-06 Created: 2008-11-06 Last updated: 2010-09-21Bibliographically approved
In thesis
1. Train-Induced Vibrations on Embankments and in Buildings: Prediction and Validation of Some Models
Open this publication in new window or tab >>Train-Induced Vibrations on Embankments and in Buildings: Prediction and Validation of Some Models
2008 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 2008. xvi, 54 p.
Series
Trita-JOB PHD, ISSN 1650-9501 ; 1010
Keyword
building, embankment, environment, flexibility, model, phase
National Category
Building Technologies
Identifiers
urn:nbn:se:kth:diva-4810 (URN)
Public defence
2008-06-10, Sal D3, KTH, Lindstedtsvägen, Stockholm, 10:00 (English)
Opponent
Supervisors
Note
QC 20100921Available from: 2008-11-19 Created: 2008-11-19 Last updated: 2010-09-21Bibliographically approved

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