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Using locally pre-stressed reinforcing bars to restore the capacity of severely damaged steel beams
journal contribution
posted on 2023-05-18, 09:16 authored by Assaad TaoumAssaad Taoum, Jiao, H, Damien HollowayDamien HollowayThis paper investigates the behaviour of damaged steel beams repaired using locally pre-stressed reinforcing steel bars. Regular reinforcing bars are welded to the beam’s web at both ends and then pretensioned using a manual screw jack to increase the effectiveness of the repair. Six beams with different bar diameters and levels of pre-stress were repaired and tested under three-points bending. Results showed that the level of pre-stress controlled the beams’ stiffness, while restoration of their ultimate load-carrying capacity was governed by the bar size. Significantly higher repaired capacities were achieved by this method than by other published methods used for the strengthening of steel beams.
History
Publication title
International Journal of Steel StructuresVolume
15Pagination
125-134ISSN
1598-2351Department/School
School of EngineeringPublisher
Springer International PublishingPlace of publication
Korea, Republic ofRights statement
Copyright 2015 KSSC and SpringerRepository Status
- Restricted