Effect of fiber reinforcing on instantaneous deflection of self-compacting concrete one-way slabs under early-age loading

Vakhshouri, B; Nejadi, S

Effect of fiber reinforcing on instantaneous deflection of self-compacting concrete one-way slabs under early-age loading

Vakhshouri, B Nejadi, S

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Publication Type:: Journal Article
Citation:: Structural Engineering and Mechanics, 2018, 67 (2), pp. 155 - 163
Issue Date:: 2018-07-25

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Field	Value	Language
dc.contributor.author	Vakhshouri, B	en_US
dc.contributor.author	Nejadi, S	en_US
dc.date.issued	2018-07-25	en_US
dc.identifier.citation	Structural Engineering and Mechanics, 2018, 67 (2), pp. 155 - 163	en_US
dc.identifier.issn	1225-4568	en_US
dc.identifier.uri	http://hdl.handle.net/10453/131536
dc.description.abstract	Copyright © 2018 Techno-Press, Ltd. The Early-age construction loading and changing properties of concrete, especially in the multi-story structures can affect the slab deflection, significantly. Based on previously conducted experiment on eight simply-supported one-way slabs this paper investigates the effect of concrete type, fiber type and content, loading value, cracking moment, ultimate moment and applied moment on the instantaneous deflection of Self-Compacting Concrete (SCC) slabs. Two distinct loading levels equal to 30% and 40% of the ultimate capacity of the slab section were applied on the slabs at the age of 14 days. A wide range of the existing models of the effective moment of inertia which are mainly developed for conventional concrete elements, were investigated. Comparison of the experimental deflection values with predictions of the existing models shows considerable differences between the recorded and estimated instantaneous deflection of SCC slabs. Calculated elastic deflection of slabs at the ages of 14 and 28 days were also compared with the experimental deflection of slabs. Based on sensitivity analysis of the effective parameters, a new model is proposed and verified to predict the effective moment of inertia in SCC slabs with and without fiber reinforcing under two different loading levels at the age of 14 days.	en_US
dc.relation.ispartof	Structural Engineering and Mechanics	en_US
dc.relation.isbasedon	10.12989/sem.2018.67.2.155	en_US
dc.subject.classification	Civil Engineering	en_US
dc.title	Effect of fiber reinforcing on instantaneous deflection of self-compacting concrete one-way slabs under early-age loading	en_US
dc.type	Journal Article
utslib.citation.volume	2	en_US
utslib.citation.volume	67	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0913 Mechanical 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.issue	2	en_US
pubs.publication-status	Published	en_US
pubs.volume	67	en_US

Abstract:

Copyright © 2018 Techno-Press, Ltd. The Early-age construction loading and changing properties of concrete, especially in the multi-story structures can affect the slab deflection, significantly. Based on previously conducted experiment on eight simply-supported one-way slabs this paper investigates the effect of concrete type, fiber type and content, loading value, cracking moment, ultimate moment and applied moment on the instantaneous deflection of Self-Compacting Concrete (SCC) slabs. Two distinct loading levels equal to 30% and 40% of the ultimate capacity of the slab section were applied on the slabs at the age of 14 days. A wide range of the existing models of the effective moment of inertia which are mainly developed for conventional concrete elements, were investigated. Comparison of the experimental deflection values with predictions of the existing models shows considerable differences between the recorded and estimated instantaneous deflection of SCC slabs. Calculated elastic deflection of slabs at the ages of 14 and 28 days were also compared with the experimental deflection of slabs. Based on sensitivity analysis of the effective parameters, a new model is proposed and verified to predict the effective moment of inertia in SCC slabs with and without fiber reinforcing under two different loading levels at the age of 14 days.

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http://hdl.handle.net/10453/131536