The flexural capacity of laminated veneer lumber beams strengthened with AFRP and GFRP sheets
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RIS BIB ENDNOTEThe flexural capacity of laminated veneer lumber beams strengthened with AFRP and GFRP sheets
Data publikacji: 27.02.2019
Czasopismo Techniczne, 2019, Volume 2 Year 2019 (116), s. 85 - 96
https://doi.org/10.4467/2353737XCT.19.023.10159Autorzy
The flexural capacity of laminated veneer lumber beams strengthened with AFRP and GFRP sheets
This paper presents the results of preliminary tests focused on the strengthening of laminated veneer lumber (LVL) beams with aramid fibre-reinforced polymer (AFRP) and glass fibre-reinforced polymer (GFRP) sheets. Edgewise bending tests were performed on elements throught 4-point loading. The following two types of strengthening arrangements were investigated: sheets bonded to the bottom face along the entire length of the element, and a U-shaped half-wrapped type of reinforcement. The reinforcement ratios of the beams strengthened with GFRP sheets were 0.3% and 1.0% for the first and second strengthening arrangements, respectively; for the beams strengthened with AFRP sheets, these ratios were 0.2% and 0.64%, respectively. The experimental data revealed an increase in both the bending strength and the stiffness in bending of the strengthened elements. The failure mode was dependent upon the type of the strengthening configuration.
Streszczenie
W artykule przedstawione zostały rezultaty badań belek z forniru klejonego warstwowo wzmocnionych tkaninami zbrojonymi włóknem aramidowym (AFRP) i szklanym (GFRP). Badania przeprowadzono na próbkach w układzie krawędziowym poddanych 4-punktowemu zginaniu. W badaniach wstępnych przyjęto dwie konfiguracje wzmocnienia: maty przyklejone do dolnej powierzchni elementów na całej długości i tzw. zbrojenie typu U doprowadzone do połowy wysokości przekroju poprzecznego. Stopień zbrojenia elementów wynosił 0.3% i 1.0% dla elementów zbrojonych matami GFRP oraz 0.2% i 0.64% dla belek zbrojonych matami aramidowymi. Wyniki badań wykazały wzrost wytrzymałości na zginanie i sztywności przy zginaniu. Postać zniszczenia zależna była od przyjętej konfiguracji wzmocnienia.
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Informacje: Czasopismo Techniczne, 2019, Volume 2 Year 2019 (116), s. 85 - 96
Typ artykułu: Oryginalny artykuł naukowy
Tytuły:
The flexural capacity of laminated veneer lumber beams strengthened with AFRP and GFRP sheets
The flexural capacity of laminated veneer lumber beams strengthened with AFRP and GFRP sheets
Kielce University of Technology, Faculty of Civil Engineering and Architecture, Department of the Strength of Materials, Concrete Structures and Bridges, Kielce, Poland
Kielce University of Technology, Faculty of Civil Engineering and Architecture, Department of the Strength of Materials, Concrete Structures and Bridges, Kielce, Poland
Publikacja: 27.02.2019
Status artykułu: Otwarte
Licencja: Żadna
Udział procentowy autorów:
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AngielskiLiczba wyświetleń: 1425
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