The effect of too stiff rail to base fastening on damage mechanism in RC ballastless track structure
Authors:
- Wit Derkowski,
- Łukasz Ślaga
Abstract
This paper presents the influence of overly stiff rail fasteners, which are used to stabilise rails on a ballastless track structure, on the mechanism of the occurrence of defects in concrete baseplates. During the analysis, there was a series of field tests performed on a real track, the purpose of which was the assessment of the technical condition of the ballastless track, the assessment of concrete baseplate strength and the verification of the correctness of the rail attachment by means of a fastener. In addition, there was a series of supplementary laboratory tests performed which assessed the relationship between the anchor clamping force and the torque at the assembly stage (the first tightening of the anchors) as well as after the adjustment of the fastening rigidity (loosening and tightening the fastening anchors again). On the basis of the obtained results, a three-dimensional numerical model of a section of the ballastless track structure was prepared with the use of adaptive solid finite elements. The performed numerical analysis reflecting the real work of a fastener in a track structure were used to identify the causes of defects in concrete baseplates in the analysed ballastless track structure.
- Record ID
- CUT826932a1ea3f4419a2e4e154106edbb4
- Publication categories
- ;
- Author
- Journal series
- Structural Concrete, ISSN 1464-4177, e-ISSN 1751-7648
- Issue year
- 2020
- Vol
- 21
- No
- 4
- Pages
- 1544-1556
- Other elements of collation
- fot.; rys.; tab.; wykr.; Bibliografia (na s.) - 1556; Bibliografia (liczba pozycji) - 12; Oznaczenie streszczenia - Abstr.; Data udostępnienia on-line - 2020-03-04; Numeracja w czasopiśmie - Vol. 21, Iss. 4
- Keywords in English
- concrete base plate, embedded block system, fastening stiffness, rail fastening
- DOI
- DOI:10.1002/suco.201900366 Opening in a new tab
- URL
- https://onlinelibrary.wiley.com/doi/full/10.1002/suco.201900366 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 100
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT826932a1ea3f4419a2e4e154106edbb4/
- URN
urn:pkr-prod:CUT826932a1ea3f4419a2e4e154106edbb4
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.