0
  • DE
  • EN
  • FR
  • Base de données et galerie internationale d'ouvrages d'art et du génie civil

Publicité

Sliding materials – the often essential but generally weakest links in bridge bearings and expansion joints

 Sliding materials – the often essential but generally weakest links in bridge bearings and expansion joints
Auteur(s): , ,
Présenté pendant IABSE Congress: The Evolving Metropolis, New York, NY, USA, 4-6 September 2019, publié dans , pp. 1231-1237
DOI: 10.2749/newyork.2019.1231
Prix: € 25,00 incl. TVA pour document PDF  
AJOUTER AU PANIER
Télécharger l'aperçu (fichier PDF) 0.47 MB

Bridge bearings and expansion joints, being engineered components that accommodate movements and rotations, are typically the parts of a bridge that are subjected to the greatest demands although b...
Lire plus

Détails bibliographiques

Auteur(s): (Mageba Group)
(Mageba EMEA)
(Mageba USA)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Congress: The Evolving Metropolis, New York, NY, USA, 4-6 September 2019
Publié dans:
Page(s): 1231-1237 Nombre total de pages (du PDF): 7
Page(s): 1231-1237
Nombre total de pages (du PDF): 7
DOI: 10.2749/newyork.2019.1231
Abstrait:

Bridge bearings and expansion joints, being engineered components that accommodate movements and rotations, are typically the parts of a bridge that are subjected to the greatest demands although being far less robust than the main structure. As a result, they generally cannot offer a service life that approaches that of the bridge as a whole. Therefore, the durability of the bearings and expansion joints selected for use in a structure is an important factor to consider in maximizing life-cycle performance. Most bearings and expansion joints that facilitate significant superstructure movements have sliding interfaces, which provide much of the flexibility required by the main structure’s design. These sliding interfaces generally involve the use of non- ferrous materials such as PTFE, which are subjected to friction and abrasion with every movement, and are therefore the component parts that are subjected to the highest demands. Therefore, the performance of the sliding materials used in a bridge’s bearings and expansion joints has considerable influence on the structure’s long-term performance. This paper discusses this subject, with a special focus on the state-of-the-art UHMWPE alternative to the PTFE sliding material traditionally used in main sliding interfaces.

Mots-clé:
pont Appuis de pont Joint de dilatation