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.
TY - 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 .
,