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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 Holloway
This 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 Structures

Volume

15

Pagination

125-134

ISSN

1598-2351

Department/School

School of Engineering

Publisher

Springer International Publishing

Place of publication

Korea, Republic of

Rights statement

Copyright 2015 KSSC and Springer

Repository Status

  • Restricted

Socio-economic Objectives

Metals

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