Analysis of diaphragm behaviour in composite multi girder railway bridges

    Yannick Sieffert Affiliation
    ; Gérard Michel Affiliation
    ; Didier Martin Affiliation
    ; David Keller Affiliation
    ; Jean‐François Jullien Affiliation


This study focuses on mechanical behaviour of diaphragm in composite multigirders railway bridge. The aim is to predict and to compare, with a numerical simulation, the transverse and longitudinal distribution of traffic loads in different girders and in the slab for the cases with and without intermediary diaphragm. A 3‐D finite element model is developed to represent the actual geometry of multigirder bridge. Durability of the concrete bridge deck is directly related to cracking, so a non‐linear constitutive equation is used for the concrete deck. This study focuses on the response of a bridge with and without dipahragm under a UIC and TGV loading. To achieve this aim, a static failure analysis is performed. Our analysis concluded that diaphragm is not necessary, so it seems to be possible to remove the diaphragms.

First Published Online: 14 Oct 2010

Keyword : concrete, steel, bridge, composite, multigirder, diaphragm, speed train

How to Cite
Sieffert, Y., Michel, G., Martin, D., Keller, D., & Jullien, J. (2004). Analysis of diaphragm behaviour in composite multi girder railway bridges. Journal of Civil Engineering and Management, 10(2), 143-150.
Published in Issue
Jun 30, 2004
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