التفاصيل البيبلوغرافية
| العنوان: |
Shear transfer behavior in composite T-beams reinforced with FRP shear friction reinforcement ; Comportement du transfert de cisaillement dans les poutres en T composites renforcées par un renforcement de friction de cisaillement en PRF |
| المؤلفون: |
Mahmoud, Moataz |
| المساهمون: |
Benmokrane, Brahim |
| بيانات النشر: |
Université de Sherbrooke |
| سنة النشر: |
2023 |
| المجموعة: |
Université de Sherbrooke: Savoirs UdeS |
| مصطلحات موضوعية: |
Reinforced concrete, Interface shear stress, Glass fiber-reinforced polymer (GFRP) bars, Basalt fiber-reinforced polymer (BFRP), Composite RC T-beam, Rough interface, Shear reinforcement, Slip, Design codes, Béton armé, Contrainte de cisaillement de l'interface, Barres en polymère renforcé de fibres de verre (PRFV), Polymère renforcé de fibres de basalte (PRFB), Poutre en T en BCA composite, Interface rugueuse, Renforcement au cisaillement, Glissement, Codes de conception |
| الوصف: |
Composite construction has proven to be cost-effective as this method merges precast and cast-inplace elements while preserving the effectiveness and seamless nature of monolithic construction. In the case of horizontal shear transfer in the composite T-beams, there are no experimental research results on the behavior of full-scale fiber-reinforced polymer (GFRP and BFRP) reinforced composite beams. This research aims to investigate a novel and sustainable approach using noncorroding FRP as shear transfer reinforcement in composite reinforced concrete (RC) Tbeams. A total of ten full-scale RC T-beams (one monolithic RC beam and nine composite RC beams) measuring 4200 mm in length, 420 mm in depth, and 250 mm in width were constructed and tested until failure. The main experimental variables evaluated were shear-reinforcement type (GFRP, BFRP, and steel stirrups); ratio (0.32%, 0.35%, or 0.48%), and shape (stirrups or bent bars). The test results were analyzed in terms of ultimate horizontal shear stress; deflection; slippage; and reinforcement strain. The experimental results indicate that the FRP shear reinforcement provided adequate shear transfer capacities compared to steel when provided across rough concrete interfaces. Moreover, the test results show that increasing the shear reinforcement ratio enhanced the performance of the composite RC T-beams in terms of horizontal shear capacity and slip. Furthermore, the available equations specified in design provisions such as CAN/CSA S6-19 (2019) and AASHTO LRFD (2018) exhibited unduly conservative predictions of the interface shear strength of the FRP bars. The results of this study unequivocally establish the viability and promise of employing FRP bars as shear connectors in composite T-beam applications. ; La construction composite se caractérise par sa rentabilité. Elle implique la combinaison d'éléments préfabriqués et coulés sur place, tout en préservant l'efficacité et l'homogénéité de la structure monolithique. Concernant le transfert ... |
| نوع الوثيقة: |
doctoral or postdoctoral thesis |
| اللغة: |
English |
| Relation: |
http://hdl.handle.net/11143/21518 |
| الاتاحة: |
http://hdl.handle.net/11143/21518 |
| Rights: |
© Moataz Mahmoud |
| رقم الانضمام: |
edsbas.163C82DD |
| قاعدة البيانات: |
BASE |