Experimental Study of Shear-Deficient RC Beam Wrapped with GFRP
| Autor: | Biplab Behera, Radhikesh Prasad Nanda |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Fibre-reinforced plastic 0201 civil engineering Stirrup Flexural strength Shear (geology) Energy absorption 021105 building & construction Composite material Beam (structure) Civil and Structural Engineering |
| Zdroj: | International Journal of Civil Engineering. 18:655-664 |
| ISSN: | 2383-3874 1735-0522 |
| DOI: | 10.1007/s40999-020-00498-4 |
| Popis: | In this study, two types of shear-deficient beams having different stirrup spacing (150 mm c/c and 300 mm c/c) were used. The performances of shear-deficient beam strengthened with externally and internally wrapped GFRP were tested under three-point bending monotonic loading. The load-carrying capacity of GFRP-wrapped beam was found to be significantly increased in comparison to the unstrengthened (control) beam and was the highest in both externally and internally bonded shear-deficient beams, i.e., 39.60% and 45.3%, respectively. Significant increment was also observed in flexural ductility, energy absorption and inelastic performance of the strengthened beams. The performance of the externally GFRP-wrapped RC beam (GFRP–epoxy-bonded RC beam) was better than that of the internally wrapped beam. However, because of the low economy index, internal wrapping is more suitable as a strengthening technique than external wrapping. |
| Databáze: | OpenAIRE |
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