Le renforcement du viaduc de Martigues

Strengthening the Martigues viaduct

Construit entre 1969 et 1972, le viaduc emblematique de Martigues supporte 80000 passages quotidiens. Les pathologies actuelles revelent les insuffisances reglementaires et technologiques de l'epoque: fissuration des nervures, degradation des appuis, obsolescence des dispositifs parasismiques. Commences en 2011, le remplacement des appareils d'appuis et la reprise totale de la conception parasismique. Les dimensions de l'ouvrage imposent le recours a des outils et des acces specifiques.ABSTRACT IN ENGLISH: Built between 1969 and 1972, is crossed by 80000 vehicles each day. At present it shows disorders revealing the regulatory and technological shortcomings of that period: evolving rib cracking, damage to support systems, obsolescence of the earthquake resistance devices. The "DIR méditerranée" interdepartmental road board awarded Bouygues TP this repair and strengthening contract. The work started in 2011, comprised longitudinal external prestressing, crack grouting, replacement of the support systems and complete reworking of the earthquake resistance design. Given the size of the structure, special tools and approach routes had to be used.

  • Availability:
  • Authors:
    • Ammar, Samy
    • Montigny, Louis
    • Cottey, Cyril
  • Publication Date: 2013-5

Language

  • French
  • English

Media Info

  • Media Type: Print
  • Features: Illustrations;
  • Pagination: pp.30-6
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01485585
  • Record Type: Publication
  • Source Agency: Belgian Road Research Centre (BRRC)
  • Files: ITRD
  • Created Date: Jul 3 2013 3:29AM