1 Flexural behaviour of hybrid steel-GFRP reinforced concrete continuous T-beams Hanady Almahmood, Ashraf Ashour, Therese Sheehan Miss Hanady Almahmood PhD research student, Civil Engineering Department, Faculty of Engineering and Informatics, University of Bradford, Bradford, West Yorkshire, BD7 1DP, UK Email address: h.a.a.almahmood@gmail.com Prof Asharf Ashour Professor of Structural Engineering, Civil Engineering Department, Faculty of Engineering and Informatics, University of Bradford, Bradford, West Yorkshire, BD7 1DP, UK Email address: A.F.Ashour@bradford.ac.uk Dr Therese Sheehan Lecturer in Structural Engineering, Civil Engineering Department, Faculty of Engineering and Informatics, University of Bradford, Bradford, West Yorkshire, BD7 1DP, UK Email address: Sheehan@bradford.ac.uk * Corresponding author Miss Hanady Almahmood Email: h.a.a.almahmood@gmail.com Phone: +44 07388307089 Abstract This paper presents test results of six full scale reinforced concrete continuous T beams. One beam was reinforced with glass fibre reinforced polymer (GFRP) bars while the other five beams were reinforced with a different combination of GFRP and steel bars. The ratio of GFRP to steel reinforcement at both mid-span and middle-support sections was the main parameter investigated. The results showed that adding steel reinforcement to GFRP reinforced concrete T-beams improves the flexural stiffness, ductility and serviceability in terms of crack width and deflection control. However, the moment redistribution at failure was limited because of the early yielding of steel reinforcement at a beam section that does