RESEARCH ARTICLE


Analysis on Flexural Stiffness of GFRP-concrete Hybrid Beams



Fei Zhao1, Chaohe Chen2, *, Haihao Guo1
1 College of Civil Engineering and Architecture, Hainan University, Haikou 570028, China;
2 School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China


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Creative Commons License
© Zhao et al.; Licensee Bentham Open

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (https://creativecommons.org/licenses/by-nc/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China; Tel:+86 02087112640; E-mail: zfhw2006@163.com


Abstract

Background:

Deferent types of reinforced concrete beams wrapped with GFRP pultruded profiles and a control RC beam are tested under three points loading.

Objective:

The moment-curvature curves of all tested beams are obtained based on the experimental study. The change characteristics of flexural stiffness for tested beams are analyzed, and the short-term flexural stiffness formula is derived.

Results:

Finally the computed values of midspan deflection for tested beams are achieved.

Keywords: Durability, Flexural stiffness, GFRP, Loading test, Reinforced concrete beam, Concrete structures, U-shaped profile.