Behavior of prestressed beam strengthened with external tendons

Citation
A. Miyamoto et al., Behavior of prestressed beam strengthened with external tendons, J STRUC ENG, 126(9), 2000, pp. 1033-1044
Citations number
5
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Civil Engineering
Journal title
JOURNAL OF STRUCTURAL ENGINEERING-ASCE
ISSN journal
0733-9445 → ACNP
Volume
126
Issue
9
Year of publication
2000
Pages
1033 - 1044
Database
ISI
SICI code
0733-9445(200009)126:9<1033:BOPBSW>2.0.ZU;2-S
Abstract
The prestressing technique using external tendons can be considered an effe ctive method of strengthening bridges deteriorating due to increasing overl oading and progressive structural aging. In order to analytically investiga te the dynamic behavior of prestressed composite girder bridges, strengthen ed with external tendons, this paper focuses on a simply supported prestres sed composite girder with alternative prestressing levels, eccentricity of the attached tendons, and tendons properties. The accuracy of the proposed analysis is verified by comparison with the results of dynamic tests on lar ge-scale prestressed composite girders. Furthermore, as a practical example , the results of a dynamic test in which the strengthening method is applie d to an actual bridge are discussed.