Long-term experimental investigation of timber composite beams in cyclic humidity conditions

Hailu, M; Shrestha, R; Crews, K

Long-term experimental investigation of timber composite beams in cyclic humidity conditions

Hailu, M Shrestha, R

Crews, K

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Publication Type:: Conference Proceeding
Citation:: WCTE 2014 - World Conference on Timber Engineering, Proceedings, 2014
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Hailu, M	en_US
dc.contributor.author	Shrestha, R https://orcid.org/0000-0001-6756-6525	en_US
dc.contributor.author	Crews, K https://orcid.org/0000-0003-1450-1423	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	WCTE 2014 - World Conference on Timber Engineering, Proceedings, 2014	en_US
dc.identifier.uri	http://hdl.handle.net/10453/121354
dc.description.abstract	A long term laboratory investigation on two six-meter-span timber composite beams was started from March 2012 at the University of Technology Sydney. These timber composites were made of laminated veneer lumber (LVL). The web and the flanges of the composite timber section were connected using screw-gluing technique. The specimens have been under sustained loads of (2.1kPa) and the environmental conditions was cyclically alternated between normal and very humid conditions whilst the temperature remained quasi constant (22 °C)-typical cycle duration was six to eight weeks. With regard to EC 5, the environmental conditions can be classified as service class 3 where the relative humidity of the air exceeds 85% and the moisture content of the timber samples reaches 20%. During the test, the mid-span deflection, moisture content of the timber beams and relative humidity of the air were continuously monitored. The paper presents the results and observations of the long-term test to-date and the test is continuing.	en_US
dc.relation.ispartof	WCTE 2014 - World Conference on Timber Engineering, Proceedings	en_US
dc.title	Long-term experimental investigation of timber composite beams in cyclic humidity conditions	en_US
dc.type	Conference Proceeding
utslib.for	091210 Timber, Pulp and Paper	en_US
utslib.for	090506 Structural Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US

Abstract:

A long term laboratory investigation on two six-meter-span timber composite beams was started from March 2012 at the University of Technology Sydney. These timber composites were made of laminated veneer lumber (LVL). The web and the flanges of the composite timber section were connected using screw-gluing technique. The specimens have been under sustained loads of (2.1kPa) and the environmental conditions was cyclically alternated between normal and very humid conditions whilst the temperature remained quasi constant (22 °C)-typical cycle duration was six to eight weeks. With regard to EC 5, the environmental conditions can be classified as service class 3 where the relative humidity of the air exceeds 85% and the moisture content of the timber samples reaches 20%. During the test, the mid-span deflection, moisture content of the timber beams and relative humidity of the air were continuously monitored. The paper presents the results and observations of the long-term test to-date and the test is continuing.

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http://hdl.handle.net/10453/121354