Flexural Strength Design of Hybrid FRP-Steel Reinforced Concrete Beams.
Flexural Strength Design of Hybrid FRP-Steel Reinforced Concrete Beams.
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DOI：
10.3390/ma14216400
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发表时间：
2021-10-25
期刊：
影响因子：
--
通讯作者：
Yin S
中科院分区：
文献类型：
--
作者：
Zhou B;Wu RY;Liu Y;Zhang X;Yin S
Through proper arranging of a hybrid combination of longitudinal fiber reinforced polymer (FRP) bars and steel bars in the tensile region of the beam, the advantages of both FRP and steel materials can be sufficiently exploited to enhance the flexural capacity and ductility of a concrete beam. In this paper, a methodology for the flexural strength design of hybrid FRP-steel reinforced concrete (RC) beams is proposed. Firstly, based on the mechanical features of reinforcement and concrete and according to the latest codified provisions of longitudinal reinforcement conditions to ensure ductility level, the design-oriented allowable ranges of reinforcement ratio corresponding to three common flexural failure modes are specified. Subsequently, the calculation approach of nominal flexural strength of hybrid FRP-steel RC beams is established following the fundamental principles of equilibrium and compatibility. In addition to the common moderately-reinforced beams, the proposed general calculation approach is also applicable to lightly-reinforced beams and heavily-reinforced beams, which are widely used but rarely studied. Furthermore, the calculation process is properly simplified and the calculation accuracy is validated by the experimental results of hybrid FRP-steel RC beams in the literature. Finally, with the ductility analysis, a novel strength reduction factor represented by net tensile steel strain and reinforcement ratio is proposed for hybrid FRP-steel RC beams.
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影响因子：
6.3
作者：
Kara, Ilker Fatih;Ashour, Ashraf F.;Koroglu, Mehmet Alpaslan
通讯作者：
Koroglu, Mehmet Alpaslan
影响因子：
7.4
作者：
El Refai, Ahmed;Abed, Farid;Al-Rahmani, Abdullah
通讯作者：
Al-Rahmani, Abdullah
影响因子：
5.5
作者：
Lau, Denvid;Pam, Hoat Joen
通讯作者：
Pam, Hoat Joen
影响因子：
5.5
作者：
Gu Xingyu;Dai Yiqing;Jiang Jiwang
通讯作者：
Jiang Jiwang
DOI：
10.1061/(asce)0733-9445(2000)126:6(684
发表时间：
2000-06-01
期刊：
JOURNAL OF STRUCTURAL ENGINEERING-ASCE
影响因子：
--
作者：
El-Mihilmy, MT;Tedesco, JW
通讯作者：
Tedesco, JW