Size effects in beams with small shear span-to-depth ratios

Kotsovos, MD; Pavlovic, MN

dc.contributor.author	Kotsovos, MD	en
dc.contributor.author	Pavlovic, MN	en
dc.date.accessioned	2014-03-01T01:21:25Z
dc.date.available	2014-03-01T01:21:25Z
dc.date.issued	2004	en
dc.identifier.issn	0045-7949	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16231
dc.subject	Analysis	en
dc.subject	Beams	en
dc.subject	Concrete	en
dc.subject	Finite-element	en
dc.subject	Modelling	en
dc.subject	Non-linear analysis	en
dc.subject	Reinforced-concrete	en
dc.subject	Shear span-to-depth ratio	en
dc.subject	Size effects	en
dc.subject.classification	Computer Science, Interdisciplinary Applications	en
dc.subject.classification	Engineering, Civil	en
dc.subject.other	Anisotropy	en
dc.subject.other	Bending strength	en
dc.subject.other	Concrete testing	en
dc.subject.other	Correlation methods	en
dc.subject.other	Crack initiation	en
dc.subject.other	Finite element method	en
dc.subject.other	Fracture mechanics	en
dc.subject.other	Reinforced concrete	en
dc.subject.other	Shear deformation	en
dc.subject.other	Structural loads	en
dc.subject.other	Shear span-to-depth ratio	en
dc.subject.other	Size effects	en
dc.subject.other	Concrete beams and girders	en
dc.title	Size effects in beams with small shear span-to-depth ratios	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.compstruc.2003.10.001	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.compstruc.2003.10.001	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	The work described in the paper complements previous work concerned with the investigation of the causes of size effects in structural-concrete members. It is based on the use of a finite-element model found to yield realistic predictions of structural-concrete behaviour in all cases investigated to date. In fact, the previous use of this model in investigations of size effects in reinforced-concrete beams with a shear span-to-depth ratio larger than 2 indicated that such effects reflect the dependence of load-carrying capacity on small unintended eccentricities of the applied load and/or load-induced anisotropy, rather than, as widely considered, on fracture-mechanics characteristics. The present work extends the scope of the above investigation so as to include the case of beams with a shear span-to-depth ratio smaller than 1.15, the behaviour of which is already established experimentally. It is found that, unlike the beams with a shear span-to-depth ratio larger than 2, the beams investigated in the present work, in contrast with the interpretation given to recently published experimental findings, are size-effect independent. (C) 2003 Elsevier Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Computers and Structures	en
dc.identifier.doi	10.1016/j.compstruc.2003.10.001	en
dc.identifier.isi	ISI:000188544400004	en
dc.identifier.volume	82	en
dc.identifier.issue	2-3	en
dc.identifier.spage	143	en
dc.identifier.epage	156	en