Dynamics of a precast system for high-speed railway tracks

• Type: Article in International Conference Proceedings Book
• Date: 2011

Authors

Cecília Vale (Author) FEUP; Ribeiro, N (Author) Other; Rui Calçada (Author) FEUP; Raimundo Delgado (Author) FEUP

Conference proceedings International

Title: ECCOMAS Thematic Conference - COMPDYN 2011: 3rd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering: An IACM Special Interest Conference, Programme

3rd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2011

Corfu, 25 May 2011 through 28 May 2011

Indexing

Scopus - 3 Citations

Scientific classification

FOS: Engineering and technology > Civil engineering

Other information

Authenticus ID: P-008-0TS

Abstract (EN): As far as slab tracks are concerned, UIC [1] considers seven different families of structures, regarding the type of slab supporting (punctual or continuous), the construction method (in situ or precast), the number of resilient levels and also the type of the foundation material (plain concrete or bituminous material). This paper begins with a brief description of precast slab systems currently available for high-speed railway lines. A research work on the dynamic behavior of precast slab tracks is being undertaken in order to identify the dynamic effects of high-speed traffic in this type of systems. In this paper some of the results attained so far in the numerical calculations are presented and discussed. Calculations are performed in 2D with the finite element program Ansys, considering several vehicle speeds and also different types of vehicle models. The dynamic response of the track is evaluated in terms of track displacement, force at the fastening systems, bending moment on the slab and also on the support concrete layer. Also the influence of the track foundation and the track geometrical quality on its response is studied.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 21