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Effect of Reinforcement Ratio on Time-Dependent Deflection of Hybrid GFRP/Steel Reinforced Concrete Beams
https://orcid.org/http://orcid.org/0009-0008-5963-7205
https://orcid.org/http://orcid.org/0000-0002-6543-5043
https://orcid.org/http://orcid.org/0009-0006-0855-9353
https://orcid.org/http://orcid.org/0000-0003-3623-1663
https://orcid.org/http://orcid.org/0000-0003-4447-2045
This paper presents an experimental study on the effect of the steel reinforcement ratio on time-dependent deflections in hybrid glass fiber-reinforced polymer (GFRP)/steel reinforced concrete (RC) beams (HGSRC beam). Three HGSRC beams and one reference GFRP RC beam were cast and tested under sustained load for a period of 180 days in varying environmental conditions. The longitudinal steel reinforcement ratio was varied to achieve a range from 0 to 1.08%. The results revealed that the steel reinforcement ratio had a remarkable impact on the time-dependent deflections of HGSRC beams. Moreover, the experimental time-dependent deflections of HGSRC beams were compared with theoretical values derived from design equations for fiber-reinforced polymer RC structures found in ACI 440.1R-15. The outcome showed that this design standard overestimated the long-term deflection of HGSRC beams. Also, a design method based on ACI 440.1R-15 with experimentally based adjusted time-dependent factors was presented for HGSRC beams. The predicted deflection values using the proposed method were found to be highly consistent with the experimental ones.
Effect of Reinforcement Ratio on Time-Dependent Deflection of Hybrid GFRP/Steel Reinforced Concrete Beams
https://orcid.org/http://orcid.org/0009-0008-5963-7205
https://orcid.org/http://orcid.org/0000-0002-6543-5043
https://orcid.org/http://orcid.org/0009-0006-0855-9353
https://orcid.org/http://orcid.org/0000-0003-3623-1663
https://orcid.org/http://orcid.org/0000-0003-4447-2045
This paper presents an experimental study on the effect of the steel reinforcement ratio on time-dependent deflections in hybrid glass fiber-reinforced polymer (GFRP)/steel reinforced concrete (RC) beams (HGSRC beam). Three HGSRC beams and one reference GFRP RC beam were cast and tested under sustained load for a period of 180 days in varying environmental conditions. The longitudinal steel reinforcement ratio was varied to achieve a range from 0 to 1.08%. The results revealed that the steel reinforcement ratio had a remarkable impact on the time-dependent deflections of HGSRC beams. Moreover, the experimental time-dependent deflections of HGSRC beams were compared with theoretical values derived from design equations for fiber-reinforced polymer RC structures found in ACI 440.1R-15. The outcome showed that this design standard overestimated the long-term deflection of HGSRC beams. Also, a design method based on ACI 440.1R-15 with experimentally based adjusted time-dependent factors was presented for HGSRC beams. The predicted deflection values using the proposed method were found to be highly consistent with the experimental ones.
Effect of Reinforcement Ratio on Time-Dependent Deflection of Hybrid GFRP/Steel Reinforced Concrete Beams
https://orcid.org/http://orcid.org/0009-0008-5963-7205
https://orcid.org/http://orcid.org/0000-0002-6543-5043
https://orcid.org/http://orcid.org/0009-0006-0855-9353
https://orcid.org/http://orcid.org/0000-0003-3623-1663
https://orcid.org/http://orcid.org/0000-0003-4447-2045
This paper presents an experimental study on the effect of the steel reinforcement ratio on time-dependent deflections in hybrid glass fiber-reinforced polymer (GFRP)/steel reinforced concrete (RC) beams (HGSRC beam). Three HGSRC beams and one reference GFRP RC beam were cast and tested under sustained load for a period of 180 days in varying environmental conditions. The longitudinal steel reinforcement ratio was varied to achieve a range from 0 to 1.08%. The results revealed that the steel reinforcement ratio had a remarkable impact on the time-dependent deflections of HGSRC beams. Moreover, the experimental time-dependent deflections of HGSRC beams were compared with theoretical values derived from design equations for fiber-reinforced polymer RC structures found in ACI 440.1R-15. The outcome showed that this design standard overestimated the long-term deflection of HGSRC beams. Also, a design method based on ACI 440.1R-15 with experimentally based adjusted time-dependent factors was presented for HGSRC beams. The predicted deflection values using the proposed method were found to be highly consistent with the experimental ones.
Effect of Reinforcement Ratio on Time-Dependent Deflection of Hybrid GFRP/Steel Reinforced Concrete Beams
Lecture Notes in Civil Engineering
Cuong, Le Thanh (editor) / Gandomi, Amir H. (editor) / Abualigah, Laith (editor) / Khatir, Samir (editor) / Quang, Hai Truong (author) / Phong, Nguyen Hung (author) / Van, Hoan Nguyen (author) / Dang, Viet Quoc (author) / Phan, Duy Nguyen (author)
International Conference on Structural Health Monitoring and Engineering Structures ; 2023 ; Da Nang city, Vietnam
Recent Advances in Structural Health Monitoring and Engineering Structures ; Chapter: 8 ; 77-86
2024-06-02
10 pages
Article/Chapter (Book)
Electronic Resource
English
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