Experimental Investigation of Cracked End-notched Glulam Beams Repaired with GFRP bars
Samo za registrovane korisnike
2019
Članak u časopisu (Objavljena verzija)
,
Slovak Forest Products Research Institute
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
In this paper, an experimental research on bending behaviour of end-notched glulam beams and their bending behaviour after repairing with glass fibre reinforced polymer (GFRP) bars is presented. Altogether five glulam beams (100 x 220 x 4000 mm) made of spruce timber classified in the strength class C22 were tested. Experiment showed that originally, the beams failed in a brittle manner due to crack opening and its propagation. Cracks in the notch details were a result of excessive tensile stresses perpendicular to grain and shear stresses. Repairing the beams with GFRP bars after their failure completely restored and notably improved their load carrying capacity (average increase of 194%). Failure mechanism after repair changed from the original brittle tensile failure to more ductile failure in bending for most beams, proving the successfulness of the intervention. This study gives an insight in rehabilitation and repair possibilities of existing structures using advanced materials l...ike GFRP bars.
Ključne reči:
Notch / glulam / GFRP bars / spruce / reinforcementIzvor:
Wood Research, 2019, 64, 6Izdavač:
- Slovak Forest Products Research Institute
Finansiranje / projekti:
- Istraživanje stanja i metoda unapređenja građevinskih konstrukcija sa aspekta upotrebljivosti, nosivosti, ekonomičnosti i održavanja (RS-MESTD-Technological Development (TD or TR)-36048)
Institucija/grupa
GraFarTY - JOUR AU - Todorović, Marija AU - Glišović, Ivan AU - Stevanović, Boško PY - 2019 UR - https://grafar.grf.bg.ac.rs/handle/123456789/1822 AB - In this paper, an experimental research on bending behaviour of end-notched glulam beams and their bending behaviour after repairing with glass fibre reinforced polymer (GFRP) bars is presented. Altogether five glulam beams (100 x 220 x 4000 mm) made of spruce timber classified in the strength class C22 were tested. Experiment showed that originally, the beams failed in a brittle manner due to crack opening and its propagation. Cracks in the notch details were a result of excessive tensile stresses perpendicular to grain and shear stresses. Repairing the beams with GFRP bars after their failure completely restored and notably improved their load carrying capacity (average increase of 194%). Failure mechanism after repair changed from the original brittle tensile failure to more ductile failure in bending for most beams, proving the successfulness of the intervention. This study gives an insight in rehabilitation and repair possibilities of existing structures using advanced materials like GFRP bars. PB - Slovak Forest Products Research Institute T2 - Wood Research T1 - Experimental Investigation of Cracked End-notched Glulam Beams Repaired with GFRP bars IS - 6 VL - 64 UR - https://hdl.handle.net/21.15107/rcub_grafar_1822 ER -
@article{ author = "Todorović, Marija and Glišović, Ivan and Stevanović, Boško", year = "2019", abstract = "In this paper, an experimental research on bending behaviour of end-notched glulam beams and their bending behaviour after repairing with glass fibre reinforced polymer (GFRP) bars is presented. Altogether five glulam beams (100 x 220 x 4000 mm) made of spruce timber classified in the strength class C22 were tested. Experiment showed that originally, the beams failed in a brittle manner due to crack opening and its propagation. Cracks in the notch details were a result of excessive tensile stresses perpendicular to grain and shear stresses. Repairing the beams with GFRP bars after their failure completely restored and notably improved their load carrying capacity (average increase of 194%). Failure mechanism after repair changed from the original brittle tensile failure to more ductile failure in bending for most beams, proving the successfulness of the intervention. This study gives an insight in rehabilitation and repair possibilities of existing structures using advanced materials like GFRP bars.", publisher = "Slovak Forest Products Research Institute", journal = "Wood Research", title = "Experimental Investigation of Cracked End-notched Glulam Beams Repaired with GFRP bars", number = "6", volume = "64", url = "https://hdl.handle.net/21.15107/rcub_grafar_1822" }
Todorović, M., Glišović, I.,& Stevanović, B.. (2019). Experimental Investigation of Cracked End-notched Glulam Beams Repaired with GFRP bars. in Wood Research Slovak Forest Products Research Institute., 64(6). https://hdl.handle.net/21.15107/rcub_grafar_1822
Todorović M, Glišović I, Stevanović B. Experimental Investigation of Cracked End-notched Glulam Beams Repaired with GFRP bars. in Wood Research. 2019;64(6). https://hdl.handle.net/21.15107/rcub_grafar_1822 .
Todorović, Marija, Glišović, Ivan, Stevanović, Boško, "Experimental Investigation of Cracked End-notched Glulam Beams Repaired with GFRP bars" in Wood Research, 64, no. 6 (2019), https://hdl.handle.net/21.15107/rcub_grafar_1822 .