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Type: Journal article
Title: Vertical shear interaction model between external FRP transverse plates and internal steel stirrups
Author: Mohamed Sadakkathulla, M.
Oehlers, D.
Seracino, R.
Citation: Engineering Structures, 2006; 28(3):381-389
Publisher: Elsevier Sci Ltd
Issue Date: 2006
ISSN: 0141-0296
Statement of
M.S. Mohamed Ali, D.J. Oehlers and R. Seracino
Abstract: A convenient and proven technique for increasing the vertical shear capacity of reinforced concrete beams is to externally bond fibre reinforced polymer (FRP) to the sides of the beam with the fibres orientated in the transverse or vertical direction. The FRP, which can be in the form of pultruded plates or applied in the wet lay-up procedure, acts as external FRP stirrups resisting vertical shear in the same way as the conventional internal steel stirrups. However, internal steel stirrups are ductile as they are both fully anchored and can yield, which is in contrast to external FRP stirrups that can debond in a brittle fashion and do not yield. Hence, there is no guarantee that the peak vertical shear forces that can be resisted by the steel stirrups and by the transverse FRP plates coincide. In this paper, a partial-interaction model has been developed that quantifies the vertical shear interaction between transverse FRP plates and steel stirrups.
Keywords: FRP; Retrofitting; Vertical shear; Reinforced concrete; Externally bonded; Near surface mounted; Wet lay-up; Transverse plates
RMID: 0020062792
DOI: 10.1016/j.engstruct.2005.08.010
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Appears in Collections:Civil and Environmental Engineering publications

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