Simultaneous Influence of the Track Axis Curvature and the Support Line Obliquity at Railway Bridge Superstructures with Steel Beams Embedded in Concrete

Stănescu Răzvan Marian 1  and Stan Oana Mihaela 2
  • 1 Faculty of Railways, Roads and Bridges, Technical University of Civil Engineering, Bucharest, Romania
  • 2 Faculty of Railways, Roads and Bridges, Technical University of Civil Engineering, Bucharest, Romania


For new railway bridges with small spans (L ≤ 35.00 m) superstructures with steel beams embedded in concrete are recommended and used, which can ensure the requirements of strength and especially stiffness, regardless of velocity.

In all the design prescriptions used so far for superstructures with steel beams embedded in concrete, and even in the technical literature, there is little information and data on the influence of the support line obliquity and the track axis curvature in the design and calculation of these types of structures.

In the design code, if certain conditions related to the geometry of the superstructure are met (obliquity, curvature) the calculation is a simplified one, made on a single isolated longitudinal beam of the deck; otherwise, if the conditions are not met, finite element program analysis is recommended.

The article aims to study the situations in which the requirements of the design prescriptions are not met.

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  • [1]. ***, “UIC Code 773-4 R”, International Union of Railways, F-75015 Paris, 1997

  • [2]. ***, EN 1992-1-1:2004, “Eurocode 2: Design of concrete structures - Part 1: General rules and rules for buildings”, 2004

  • [3]. ***, EN 1994-2:2005, “Eurocode 4: Design of composite steel and concrete structures – Part 2: General rules and rules for bridges”, 2005

  • [4]. ***, “Element Reference Manual”, LUSAS Finit Element Analysis, Version 15.0

  • [5]. STĂNESCU R.M., “Study of influence of the track curvature and supports obliquity at railway bridge structures with steel beams embedded in concrete”, PhD. Thesis, T.U.C.E. Bucharest, Romania, 2016

  • [6]. GIORDANO A., RĂCĂNEL I.R., VOIRO G., “Steel-concrete viaducts in the Orăştie-Sibiu Highway: a Eurocode compliant project”, The VI-th INTERNATIONAL SCIENTIFIC CONFERENCE Road Research and Administration, pp 1183-1194,, “CAR 2013”, Bucharest, 4-5 July 2013

  • [7]. RĂCĂNEL I.R., MUTU C.S., “Strengthening of the cable-stayed bridge over Danube at Agigea”, Seven-th Conference on Bridge Maintenance, Safety, Management and Life Extension I.A.B.M.A.S. 2014, pp. 2322-2329, ISBN CD-ROM 978-1-138-00103-9, Taylor&Francis Group, Shanghai 7-11 of July, Shanghai, China, 2014

  • [8]. RĂCĂNEL I.R., STOICESCU G., “Analysis of the stress state for rails with holes near joints”, 4th European Conference of CIVIL ENGINEERING (ECCIE ‘13), pp 129-135,, Antalya, Turkey, October 8-10, 2013


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