Residual strength of timber-concrete composite beams after long-term test

Hailu, M; Gerber, C; Shrestha, R; Crews, K

Residual strength of timber-concrete composite beams after long-term test

Hailu, M

Gerber, C Shrestha, R

Crews, K

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Publication Type:: Conference Proceeding
Citation:: From Materials to Structures: Advancement Through Innovation - Proceedings of the 22nd Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2012, 2013, pp. 73 - 78
Issue Date:: 2013-08-12

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Field	Value	Language
dc.contributor.author	Hailu, M https://orcid.org/0000-0002-6868-6921	en_US
dc.contributor.author	Gerber, C	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	2013-08-12	en_US
dc.identifier.citation	From Materials to Structures: Advancement Through Innovation - Proceedings of the 22nd Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2012, 2013, pp. 73 - 78	en_US
dc.identifier.isbn	9780415633185	en_US
dc.identifier.uri	http://hdl.handle.net/10453/31550
dc.description.abstract	This paper presents a comprehensive serviceability investigation that commenced at the University of Technology, Sydney, in August 2010. The tests have been conducted on two 5.8 m span timber concrete composite beams (referred to as TCC beams here onwards) with two different connector types: Type 17 screws and four notches with coach screws. The materials used are laminated veneer lumber (LVL) for the beams and 32-MPa concrete for the flanges. Three serviceability tests were conducted on the beams, two short-term (quasi-static loading) and one longterm (sustained loading) tests. The short-term tests were completed before the start and after the end of the long-term test. Both short-term tests aim to identify the initial and residual stiffness respectively. The ultimate strength of the specimens was also investigated in the course of the last test. During the long-term test (duration of approximately 500 days), the specimens were under a sustained load (1.7 kPa) whilst the environmental conditions were cyclically alternated between normal and very humid conditions - A typical cycle duration was six to eight weeks. The temperature remained quasi constant (22°C). The mid-span deflection, LVL-beam EMC and relative humidity of the air were continuously monitored during the test. This test aim to quantify the creep effect of the TCC beams. The paper starts with a brief literature review, continues with a presentation of the laboratory investigations and then presents a thorough discussion and analysis of the long-term and short-term investigations. © 2013 Taylor & Francis Group.	en_US
dc.relation.ispartof	From Materials to Structures: Advancement Through Innovation - Proceedings of the 22nd Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2012	en_US
dc.title	Residual strength of timber-concrete composite beams after long-term test	en_US
dc.type	Conference Proceeding
utslib.for	0905 Civil Engineering	en_US
dc.location.activity	Sydney, Australia
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:

This paper presents a comprehensive serviceability investigation that commenced at the University of Technology, Sydney, in August 2010. The tests have been conducted on two 5.8 m span timber concrete composite beams (referred to as TCC beams here onwards) with two different connector types: Type 17 screws and four notches with coach screws. The materials used are laminated veneer lumber (LVL) for the beams and 32-MPa concrete for the flanges. Three serviceability tests were conducted on the beams, two short-term (quasi-static loading) and one longterm (sustained loading) tests. The short-term tests were completed before the start and after the end of the long-term test. Both short-term tests aim to identify the initial and residual stiffness respectively. The ultimate strength of the specimens was also investigated in the course of the last test. During the long-term test (duration of approximately 500 days), the specimens were under a sustained load (1.7 kPa) whilst the environmental conditions were cyclically alternated between normal and very humid conditions - A typical cycle duration was six to eight weeks. The temperature remained quasi constant (22°C). The mid-span deflection, LVL-beam EMC and relative humidity of the air were continuously monitored during the test. This test aim to quantify the creep effect of the TCC beams. The paper starts with a brief literature review, continues with a presentation of the laboratory investigations and then presents a thorough discussion and analysis of the long-term and short-term investigations. © 2013 Taylor & Francis Group.

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http://hdl.handle.net/10453/31550