Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pull-out behaviour of axially loaded Basalt Fibre Reinforced Polymer (BFRP) rods bonded perpendicular to the grain of glulam elements
Highlights ► Pull-out capacity of both samples increased almost linearly with the bonded length. ► The most significant failure mode was shear fracture which occurred at the timber/adhesive interface. ► The bond stress–slip relationship was characterised with double branch behaviour. ► The proposed pull-out theoretical expression was the most consistent with the test results.
Abstract The behaviour of Basalt Fibre Reinforced Polymer (BFRP) loaded perpendicular to glulam timber elements was investigated. It was found that pull-out load increased approximately linearly with the bonded length up to maximum which occurred at a bonded length of 250mm (∼15times the hole diameter) and did not increase beyond this bonded length. Failure mode of the samples was mostly shear fracture which was located at the cylindrical zone at the timber/adhesive interface. Increased bonded lengths resulted in corresponding decrease in interfacial bond stress. At 250mm bonded length, the pull-out capacity of the proposed design model was about 2% lower than that of the tests. The results also showed that the bond stress of the theoretical model (at the ascending and descending branches) of the stress–slip curve was approximately 5–10% of that of the experiment.
Pull-out behaviour of axially loaded Basalt Fibre Reinforced Polymer (BFRP) rods bonded perpendicular to the grain of glulam elements
Highlights ► Pull-out capacity of both samples increased almost linearly with the bonded length. ► The most significant failure mode was shear fracture which occurred at the timber/adhesive interface. ► The bond stress–slip relationship was characterised with double branch behaviour. ► The proposed pull-out theoretical expression was the most consistent with the test results.
Abstract The behaviour of Basalt Fibre Reinforced Polymer (BFRP) loaded perpendicular to glulam timber elements was investigated. It was found that pull-out load increased approximately linearly with the bonded length up to maximum which occurred at a bonded length of 250mm (∼15times the hole diameter) and did not increase beyond this bonded length. Failure mode of the samples was mostly shear fracture which was located at the cylindrical zone at the timber/adhesive interface. Increased bonded lengths resulted in corresponding decrease in interfacial bond stress. At 250mm bonded length, the pull-out capacity of the proposed design model was about 2% lower than that of the tests. The results also showed that the bond stress of the theoretical model (at the ascending and descending branches) of the stress–slip curve was approximately 5–10% of that of the experiment.
Pull-out behaviour of axially loaded Basalt Fibre Reinforced Polymer (BFRP) rods bonded perpendicular to the grain of glulam elements
Yeboah, David (Autor:in) / Taylor, Su (Autor:in) / McPolin, Danny (Autor:in) / Gilfillan, Raymond (Autor:in)
Construction and Building Materials ; 38 ; 962-969
20.09.2012
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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