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Upgrading steel I-beams using local post-tensioning
journal contribution
posted on 2023-05-18, 11:08 authored by Assaad TaoumAssaad Taoum, Jiao, H, Damien HollowayDamien HollowayThis paper investigates the behaviour of steel beams upgraded using locally pre-stressed reinforcing steel bars. The reinforcing bars were welded to the beam's flange or web at both ends and tensioned using a manual screw jack to increase the load-carrying capacity and stiffness of the beam. In total, seven beams were upgraded and tested under three-point bending, using different configurations of reinforcing steel. Results showed that the level of pre-stress, the type of local prestress (internal or external) and the diameter of rebars used significantly affected the beams' stiffness and their ultimate load-carrying capacity. The results obtained in this study were compared to those of other methods used for upgrading steel beams.
History
Publication title
Journal of Constructional Steel ResearchVolume
113Pagination
127-134ISSN
0143-974XPublisher
Elsevier Sci LtdPlace of publication
The Boulevard, Langford Lane, Kidlington, Oxford, England, Oxon, Ox5 1GbRights statement
Copyright 2015 Elsevier Ltd.Repository Status
- Restricted