Bending stiffness, load-bearing capacity and flexural rigidity of slender hybrid wood-based beams

Šubic, Barbara (author), Fajdiga, Gorazd (author), Lopatič, Jože (author)

Modern architecture suggests the use of opened spaces with large transparent envelope surfaces. Therefore, windows of long widths and large heights are needed. In order to withstand the wind loads, such wooden windows can be reinforced with stiffer materials, such as aluminium (Al), glass-fibre reinforced polymer (GFRP), and carbon-fibre reinforced polymer (CFRP). The bending stiffness, load-bearing capacity, and flexural rigidity of hybrid beams, reinforced with aluminium, were compared through experimental analysis, using a four-point bending tests method, with those of reference wooden beams. The largest increases in bending stiffness (29%-39%), load-bearing capacity (33%-45%), and flexural rigidity (43%-50%) were observed in the case of the hybrid beams, with the highest percentage of reinforcements (12.9% six reinforcements in their tensile and six reinforcements in their compressive zone). The results of the experiments confirmed the high potential of using hybrid beams to produce large wooden windows, for different wind zones, worldwide.

• Language: English
• Keywords: wood based composites, hybrid beams, bending stiffness, flexural rigidity, aluminium reinforcements, wooden windows
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty; FGG - Faculty of Civil and Geodetic Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2018
• Number of pages: 16 str.
• Numbering: Vol. 9, iss. 11, art. 703
• PID: 20.500.12556/RUL-132012
• UDC: 630*8
• ISSN on article: 1999-4907
• DOI: 10.3390/f9110703
• COBISS.SI-ID: 2967433
• Publication date in RUL: 08.10.2021

Record is a part of a journal

• Title: Forests
• Shortened title: Forests
• Publisher: MDPI
• ISSN: 1999-4907
• COBISS.SI-ID: 3872166

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 13.11.2018

Secondary language

• Language: Slovenian
• Keywords: lesni kompoziti, lesena okna, hibridni leseni nosilci, upogibna togost, ojačitve iz aluminija