Shear response of glass fibre reinforced polymer (Gfrp) built-up hollow and lightweight concrete filled beams: An experimental and numerical study
Bending (forming); Composite beams and girders; Crushing; Fiber reinforced plastics; Filled polymers; Flanges; Glass fibers; Light weight concrete; Diagonal tension; Experimental and numerical studies; Four point bending; Glass fibre reinforced polymers; Rectangular hollow sections; Shear performanc...
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2023
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my.uniten.dspace-252072023-05-29T16:07:21Z Shear response of glass fibre reinforced polymer (Gfrp) built-up hollow and lightweight concrete filled beams: An experimental and numerical study Kong S.Y. Wong L.S. Paul S.C. Miah M.J. 57208875766 55504782500 57934489700 57191381045 Bending (forming); Composite beams and girders; Crushing; Fiber reinforced plastics; Filled polymers; Flanges; Glass fibers; Light weight concrete; Diagonal tension; Experimental and numerical studies; Four point bending; Glass fibre reinforced polymers; Rectangular hollow sections; Shear performance; Shear resistances; Span-to-depth ratio; Concrete beams and girders This paper investigated the static behaviour of glass fibre reinforced polymer (GFRP) built-up hollow and concrete filled built-up beams tested under four-point bending with a span-to-depth ratio of 1.67, therefore focusing their shear performance. Two parameters considered for hollow sections were longitudinal web stiffener and strengthening at the web�flange junction. The experimental results indicated that the GFRP hollow beams failed by web crushing at supports; therefore, the longitudinal web stiffener has an insignificant effect on improving the maximum load. Strengthening web�flange junctions using rectangular hollow sections increased the maximum load by 47%. Concrete infill could effectively prevent the web crushing, and it demonstrated the highest load increment of 162%. The concrete filled GFRP composite beam failed by diagonal tension in the lightweight concrete core. The finite element models adopting Hashin damage criteria yielded are in good agreement with the experimental results in terms of maximum load and failure mode. Based on the numerical study, the longitudinal web stiffener could prevent the web buckling of the slender GFRP beam and improved the maximum load by 136%. The maximum load may be further improved by increasing the thickness of the GFRP section and the size of rectangular hollow sections used for strengthening. It was found that the bond�slip at the concrete�GFRP interface affected the shear resistance of concrete�GFRP composite beam. � 2020 by the authors. Licensee MDPI, Basel, Switzerland. Final 2023-05-29T08:07:21Z 2023-05-29T08:07:21Z 2020 Article 10.3390/polym12102270 2-s2.0-85092782352 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85092782352&doi=10.3390%2fpolym12102270&partnerID=40&md5=e0bf2f76df4d9fabe25e2cd3a3d25eab https://irepository.uniten.edu.my/handle/123456789/25207 12 10 2270 1 14 All Open Access, Gold, Green MDPI AG Scopus |
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Bending (forming); Composite beams and girders; Crushing; Fiber reinforced plastics; Filled polymers; Flanges; Glass fibers; Light weight concrete; Diagonal tension; Experimental and numerical studies; Four point bending; Glass fibre reinforced polymers; Rectangular hollow sections; Shear performance; Shear resistances; Span-to-depth ratio; Concrete beams and girders |
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57208875766 |
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57208875766 Kong S.Y. Wong L.S. Paul S.C. Miah M.J. |
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Article |
| author |
Kong S.Y. Wong L.S. Paul S.C. Miah M.J. |
| spellingShingle |
Kong S.Y. Wong L.S. Paul S.C. Miah M.J. Shear response of glass fibre reinforced polymer (Gfrp) built-up hollow and lightweight concrete filled beams: An experimental and numerical study |
| author_sort |
Kong S.Y. |
| title |
Shear response of glass fibre reinforced polymer (Gfrp) built-up hollow and lightweight concrete filled beams: An experimental and numerical study |
| title_short |
Shear response of glass fibre reinforced polymer (Gfrp) built-up hollow and lightweight concrete filled beams: An experimental and numerical study |
| title_full |
Shear response of glass fibre reinforced polymer (Gfrp) built-up hollow and lightweight concrete filled beams: An experimental and numerical study |
| title_fullStr |
Shear response of glass fibre reinforced polymer (Gfrp) built-up hollow and lightweight concrete filled beams: An experimental and numerical study |
| title_full_unstemmed |
Shear response of glass fibre reinforced polymer (Gfrp) built-up hollow and lightweight concrete filled beams: An experimental and numerical study |
| title_sort |
shear response of glass fibre reinforced polymer (gfrp) built-up hollow and lightweight concrete filled beams: an experimental and numerical study |
| publisher |
MDPI AG |
| publishDate |
2023 |
| _version_ |
1806428172038701056 |
| score |
13.214268 |