Flexural properties of wood I-beams flanged with tropical hardwoods

Campos M. B. S., . and Del Menezzi C. H. S., . and de Souza M. R., . Flexural properties of wood I-beams flanged with tropical hardwoods. pp. 358-367. ISSN 0128-1283

The paper is aimed at evaluating the flexural properties of wood I-beams flanged with two tropical hardwoods: castanha-de-macaco (Cariniana micrantha) and marup¡ (Simarouba amara). The flanges were nondestructively tested and used to assemble 16 MDF-webbed wood I-beams. Two adhesive types were used for bonding flange to web namely resorcinol-formaldehyde and castor-oil based polyurethane. Results showed that flexural properties of I-beams were highly affected by the flange stiffness and transversal vibration method showed models with the highest coefficient of determination. Castanha-de-macaco flanged I-beam presented flexural properties higher than marup¡ flanged I-beam. On the other hand adhesive type affected only modulus of elasticity and resorcinol-formaldehyde yielded stiffer I-beam. All tested I-beams showed suitable flexural properties in comparison with data found in the literature. Although this was a preliminary study the potential of tropical hardwoods as I-beam flange materials had been demonstrated and the research effort should be continued.

Full text available from: Official URL: http://www.frim.gov.my/v1/JTFSOnline/jtfs/v24n3/35...

Abstract

The paper is aimed at evaluating the flexural properties of wood I-beams flanged with two tropical hardwoods: castanha-de-macaco (Cariniana micrantha) and marup¡ (Simarouba amara). The flanges were nondestructively tested and used to assemble 16 MDF-webbed wood I-beams. Two adhesive types were used for bonding flange to web namely resorcinol-formaldehyde and castor-oil based polyurethane. Results showed that flexural properties of I-beams were highly affected by the flange stiffness and transversal vibration method showed models with the highest coefficient of determination. Castanha-de-macaco flanged I-beam presented flexural properties higher than marup¡ flanged I-beam. On the other hand adhesive type affected only modulus of elasticity and resorcinol-formaldehyde yielded stiffer I-beam. All tested I-beams showed suitable flexural properties in comparison with data found in the literature. Although this was a preliminary study the potential of tropical hardwoods as I-beam flange materials had been demonstrated and the research effort should be continued.

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Item Type:	Article
AGROVOC Term:	Wood
AGROVOC Term:	Simarouba
AGROVOC Term:	Polyurethane
AGROVOC Term:	Fibreboards
AGROVOC Term:	Lumber
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:26
URI:	http://webagris.upm.edu.my/id/eprint/21254

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