Effect of web configuration and flange type on bending strength of I-joist beams

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NAZERIAN M.; REZAIAN A.R.; SHAMSIAN M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Wood and Paper Science Research Year:2019 | Volume:34 | Issue:2 (67) Page(s): 263-275

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Information Journal Paper

Title

Effect of web configuration and flange type on bending strength of I-joist beams

Author(s)

NAZERIAN M. | REZAIAN A.R. | SHAMSIAN M. | Issue Writer Certificate

Keywords

I-joist beamQ1

flangeQ1

webQ1

crinkleQ1

honeycombQ1

thermal-compress treatmentQ1

Abstract

Bending strength of poplar species (Popolus deltoids) and eucalyptus (Eucalyptus spp) I-joist with reduced weight using two methods of crinkling and honeycombing was studied. Investigated variables was including: a) type of flange, b) configuration of lightened core layer in web and c) thermal-pressure treatment surface layers of web. flange type at two levels: 1) LVL from poplar wood and 2) eucalyptus wood, configuration of web core layer at two level: 1) crinkle and 2) honeycomb and type of treatment applied on surface layers of web which were prepared from poplar layers with 3 mm thick at two levels: 1) thrmo-compressed treated and 2) untreated veneers. Mechanical properties of beam including modulus of rapture (MOR) and modulus of elasticity (MOE) were selected and tested as dependent variables. Results were statistically analyzed in full factorial plot, . After determination of results significance results, means of values were classified by Duncan Multiple Range Test (DMRT). Results showed that using LVL from poplar unlike its low density had higher MOR and MOE values compared with eucalyptus wood. Inaddition, in order to reduce the weigth of the beam, using honeycomb configuration in web core layer generated higher strength in comparison with crinkle configuration. Treatment of surface layers of web had no effect on bending strength, statistically.

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APA: Copy

NAZERIAN, M., REZAIAN, A.R., & SHAMSIAN, M.. (2019). Effect of web configuration and flange type on bending strength of I-joist beams. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 34(2 (67) ), 263-275. SID. https://sid.ir/paper/408856/en

Vancouver: Copy

NAZERIAN M., REZAIAN A.R., SHAMSIAN M.. Effect of web configuration and flange type on bending strength of I-joist beams. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2019;34(2 (67) ):263-275. Available from: https://sid.ir/paper/408856/en

IEEE: Copy

M. NAZERIAN, A.R. REZAIAN, and M. SHAMSIAN, “Effect of web configuration and flange type on bending strength of I-joist beams,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 34, no. 2 (67) , pp. 263–275, 2019, [Online]. Available: https://sid.ir/paper/408856/en

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