Veneer strand flanged I-beam with MDF or particleboard as web material IV: Effect of web material types and flange density on the basic properties
Veneer strand flanged I-beam with MDF or particleboard as web material IV: Effect of web material types and flange density on the basic properties
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Date
2016-01-05
Authors
Abdalla, Ashraf Mohamed Ahmed
Journal Title
Journal ISSN
Volume Title
Publisher
University of Khartoum
Abstract
The balance of strength between the flange and
web parts of veneer strand flanged I-beam was investigated
by the following methods: (1) use of different web material
types, such as plywood, oriented strand board (OSB), particleboard
(PB), and medium density fiberboard (MDF),
that have different strength properties; and (2) fabrication
of I-beams with low-density flanges using low-density
strands with PB web material. Replacing PB or MDF
with plywood showed slight significant improvement in the
modulus of rupture but not in the modulus of elasticity of
the entire I-beam. However, PB and MDF showed competent
performance in comparison with OSB, thus strengthening
the promising future of the use of PB or MDF as web
material to fabricate I-beams. Hot-pressing conditions used
for I-beam production exerted slightly adverse effects on
the bending properties of PB, but not on MDF, OSB, and
plywood web materials. The flange density of 0.60g/cm3 was
considered to be the lower limit that provides I-beams with
balanced mechanical properties and dimensional stability
Description
Keywords
I-beam · Web material · Flange density · Mechanical properties · Dimensional stability