Glulam members strengthened by carbon fibre reinforcement

Johnsson, Helena; Blanksvärd, Thomas; Carolin, Anders

doi:10.1617/s11527-006-9119-7

Cited by 70 publications

(56 citation statements)

References 6 publications

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“…Colombi and Poggi, 2006;Seleem et al, 2010), timber (i.e. Johnsson et al, 2006;Nadira et al, 2016) and even glass (i.e. Correia et al, 2011;Speranzini and Agnetti, 2015).…”

Section: Introductionmentioning

confidence: 99%

Finite-Element Numerical Simulation of the Bending Performance of Post-Tensioned Structural Glass Beams with Adhesively Bonded CFRP Tendons

Bedon¹,

Louter²

2016

American Journal of Engineering and Applied Sciences

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In this paper, a Finite-Element (FE) numerical investigation is carried out on laminated glass beams with Carbon Fibre Reinforced Polymer (CFRP) adhesively bonded post-tensioning tendons. Taking advantage of past four-point bending experimental test results available in literature, a refined full 3D FE numerical model is calibrated and validated. A key role is given to a multitude of aspects, including the implementation of damage models for materials as well as the appropriate mechanical interaction between the beam components, in order to properly reproduce the expected effects of post-tensioning as well as the overall bending behavior for the examined structural typology.

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“…Colombi and Poggi, 2006;Seleem et al, 2010), timber (i.e. Johnsson et al, 2006;Nadira et al, 2016) and even glass (i.e. Correia et al, 2011;Speranzini and Agnetti, 2015).…”

Section: Introductionmentioning

confidence: 99%

Finite-Element Numerical Simulation of the Bending Performance of Post-Tensioned Structural Glass Beams with Adhesively Bonded CFRP Tendons

Bedon¹,

Louter²

2016

American Journal of Engineering and Applied Sciences

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“…Johnsson, Blanksvard i Carolin [13] su istraživali ojačanje nosača od lepljenog lameliranog drveta Experimental results showed that CFRP bars positioned in tensile zone can significantly improve ultimate moment and stiffness of the beam. For reinforcement ratios of 0.51% and 1.03%, an increase in the ultimate moment was recorded 26% and 82%, and an increase in stiffness 8% and 19% compared to unreinforced beams.…”

Section: Slika 4 Poprečni Preseci Ojačanih Nosača [12]mentioning

confidence: 99%

“…Johnsson, Blanksvard and Carolin [13] explored pomoću CFRP šipki. Posebna pažnja bila je usmerena ka utvrđivanju potrebne minimalne dužine sidrenja ojačanja, pri kojoj neće doći do pojave prevremenog loma.…”

Section: Slika 4 Poprečni Preseci Ojačanih Nosača [12]unclassified

Strengthening of timber beams using FRP bars

Todorović¹,

Stevanović²,

Glišović³

2017

Gra Mat Konst

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UVODDrvo kao jedan od najstarijih građevinskih materijala nalazi primenu i u savremenoj građevinskoj praksi zahvaljući tome što predstavlja prirodan, obnovljiv, biorazgradiv i estetski atraktivan materijal. Potreba da se ojačaju drvene konstrukcije može nastati iz različitih razloga, kao što su mehanička oštećenja, destruktivni uticaji okruženja ili povećanje korisnog opterećenja. U ovom kontekstu, razvoj efikasnih metoda ojačanja od velike je važnosti.Poslednjih godina, primena polimera ojačanih vlaknima (Fiber Reinforced Polymer -FRP) u oblasti sanacija i ojačanja građevinskih konstrukcija omogućena je zahvaljujući povećanoj dostupnosti i sve nižoj ceni. FRP materijali su grupa naprednih kompozita u okviru kojih se nalaze vlakna izraženih mehaničkih karakteristika (najčešće staklena ili karbonska) povezana izuzetno čvrstom, hemijski otpornom i trajnom sintetičkom smolom (kao matricom). Ovi kompozitni materijali dostupni su kao gotovi fabrički proizvodi najčešće u formi traka, tkanina ili šipki. Povezivanje FRP ojačanja za konstrukcijske elemente izvodi se uglavnom lepljenjem uz primenu odgovarajućih polimernih lepkova. Ovi materijali se već dugo uspešno koriste pri ojačanju betonskih i zidanih konstrukcija [1,2], dok je njihova primena za ojačanje i sanaciju drvenih konstrukcija još uvek u fazi ispitivanja kako bi se obezbedila pravilna i optimalna Marija Todorović, Asistent -student doktorskih studija, mast. inž.

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“…FRPs offer good corrosion resistance and have a high strength to weight ratio. When compared with the control glulam, increases in the load-carrying capacity of 44 to 63% and stiffness of 10% were achieved with FRPs (Dagher et al 1996(Dagher et al , 1998Buell and Saadatmanesh 2005;Johnsson et al 2006). In addition, laminated wood reinforced with horizontal and vertical pultruded materials exhibits a higher MOR than solid wood or controls.…”

Section: Introductionmentioning

confidence: 99%

“…Aramid fiber is sensitive to moisture content (MC), making it less suitable for reinforced timber (Johnsson et al 2006). Although carbon fibers have similar or higher cost than glass fibers, carbon fiber reinforced polymer (CFRP) provides improved stiffness and strength properties with a lower weight, which is more suitable for reinforcing glulam beams (Anca et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Poplar Laminated Veneer Lumber Modified by Carbon Fiber Reinforced Polymer

Wei¹,

Wang²,

Zhou³

et al. 2013

BioResources

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a Poplar (Populus euramericana cv.) is one of the most important fastgrowing tree species in China, but so far its utilization has been limited to nonstructural wood-based panels. The objective of this work was to develop a good understanding of how to improve the mechanical properties of poplar laminated veneer lumber (LVL) with carbon fiber reinforced polymer (CFRP). A theoretical model was successfully developed to predict the bending modulus of elasticity (MOE) of LVL reinforced by CFRP. To validate the model, two different configurations of LVL were made in the laboratory: LVL reinforced with a single layer of CFRP on one side (LVL-SR) and LVL reinforced with a single layer of CFRP on each side (LVL-DR). It was found that the model prediction of the LVL MOE agreed well with the experimental results. LVL reinforced with CFRP had a greater MOE and modulus of rupture (MOR) than the control LVL. The MOE of the LVL-SR and LVL-DR increased by 40% and 67%, respectively.

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Glulam members strengthened by carbon fibre reinforcement

Cited by 70 publications

References 6 publications

Finite-Element Numerical Simulation of the Bending Performance of Post-Tensioned Structural Glass Beams with Adhesively Bonded CFRP Tendons

Finite-Element Numerical Simulation of the Bending Performance of Post-Tensioned Structural Glass Beams with Adhesively Bonded CFRP Tendons

Strengthening of timber beams using FRP bars

Mechanical Properties of Poplar Laminated Veneer Lumber Modified by Carbon Fiber Reinforced Polymer

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