Structural behavior of cable anchorage zones in prestressed concrete cable-stayed bridge

Authors: Jo B-W.; Byun Y-J.; Tae G-H.

Source: Canadian Journal of Civil Engineering, Volume 29, Number 1, February 2002 , pp. 171-180(10)

Publisher: NRC Research Press

Abstract:

Since the cable anchorage zone in a prestressed concrete cable-stayed bridge is subjected to a large amount of concentrated tendon force, it shows very complicated stress distributions which can cause serious local cracks. Accordingly, it is necessary to investigate the parameters affecting the stress distribution, such as the cable inclination, the position of the anchor plate, the modeling method, and three-dimensional effects. The tensile stress distribution in the anchorage zone is compared to the actual design condition by varing the stiffness of spring elements in the local modeling, and an appropriate position for the anchor plate is determined. The results provide elementary data for the stress state in the anchorage zones and encourage more efficient designs.Key words: finite element analysis, bursting stress, spalling stress, cable anchorage zone, cable-stayed bridge.

Puisque la zone d'ancrage des câbles d'un pont suspendu en béton précontraint est sujette à d'importantes forces concentrées près des câbles, cette zone présente des distributions de contrainte très compliquées qui peuvent causer de sérieuses fissures locales. Par conséquent, il est nécessaire d'étudier les paramètres affectant la distribution de contrainte, tel que l'inclinaison des câbles, la position de la plaque d'ancrage, la méthode de modélisation et les effets tridimensionnels. La distribution des contraintes de tension dans la zone d'ancrage est comparée aux conditions réelles de conception en variant la rigidité des ressorts dans la modélisation locale et une position appropriée pour la plaque d'ancrage est déterminée. Les résultats fournissent des données élémentaires pour l'état de contrainte dans les zones d'ancrage et encouragent une conception plus efficace.Mots clés : analyse d'éléments finis, contrainte d'éclatement, contrainte d'effritement, zone d'ancrage des câbles, ponts suspendus.[Traduit par la Rédaction]

Keywords: finite element analysis; bursting stress; spalling stress; cable anchorage zone; cable-stayed bridge; analyse d'éléments finis; contrainte d'éclatement; contrainte d'effritement; zone d'ancrage des câbles; ponts suspendus

Language: English

Document Type: Research article

Publication date: 2002-02-01

• Published since 1974, this monthly publication is the official journal of the Canadian Society for Civil Engineering. It contains articles on environmental engineering, hydrotechnical engineering, structure engineering, construction engineering, engineering mechanics, and engineering materials, and a history of civil engineering. Contributors include recognized researchers and practitioners in industry, government, and academe. New developments in engineering design and construction are also featured.
• Information for Authors
• Submit a Paper
• Subscribe to this Title
• Terms & Conditions
• Sample Issue
• Reprints & Permissions
• ingentaconnect is not responsible for the content or availability of external websites

• In this: publication
• By this: publisher
• In this Subject: Engineering/Technology ,  General & Civil Engineering
• By this author: Jo B-W. ;  Byun Y-J. ;  Tae G-H.

Website © Publishing Technology. Article copyright remains with the publisher, society or author(s) as specified within the article.

• Terms and conditions
• Privacy policy
• Information for advertisers