Evaluation of structural-concrete design-concepts based on finite-element analysis

Kotsovos, MD; Spiliopoulos, KV

dc.contributor.author	Kotsovos, MD	en
dc.contributor.author	Spiliopoulos, KV	en
dc.date.accessioned	2014-03-01T01:13:44Z
dc.date.available	2014-03-01T01:13:44Z
dc.date.issued	1998	en
dc.identifier.issn	0178-7675	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12694
dc.subject	Constitutive Model	en
dc.subject	Finite Element Analysis	en
dc.subject	Yield Prediction	en
dc.subject.classification	Mathematics, Interdisciplinary Applications	en
dc.subject.classification	Mechanics	en
dc.subject.other	Brittleness	en
dc.subject.other	Concrete aggregates	en
dc.subject.other	Concrete construction	en
dc.subject.other	Ductility	en
dc.subject.other	Failure analysis	en
dc.subject.other	Finite element method	en
dc.subject.other	Shear strength	en
dc.subject.other	Yield stress	en
dc.subject.other	Aggregate interlock	en
dc.subject.other	Brittle shear	en
dc.subject.other	Dowel action	en
dc.subject.other	Ductile flexular	en
dc.subject.other	Structural analysis	en
dc.title	Evaluation of structural-concrete design-concepts based on finite-element analysis	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s004660050309	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s004660050309	en
heal.language	English	en
heal.publicationDate	1998	en
heal.abstract	Finite element analysis incorporating a brittle constitutive model of concrete is used to investigate the validity of the concepts which underlie structural concrete design. It is shown that ignoring fundamental concepts forming the basis of current code provisions - such as, for example, the concepts of "aggregate interlock" and "dowel action" through which cracked concrete is considered to contribute significantly to shear resistance - does not impair the ability of the analysis to yield predictions of structural behaviour which correlates closely with experimental values. For the structural forms investigated, it is found that designing to current codes leads to unsafe solutions, since the analysis predicts premature brittle shear, instead of the intended ductile flexural, failure. On the other hand, designing to the concept of the "compressive force path" which allows for the brittle nature of concrete was found to achieve the design objectives for safety and adequate ductility.	en
heal.publisher	Springer-Verlag GmbH & Company KG, Berlin, Germany	en
heal.journalName	Computational Mechanics	en
dc.identifier.doi	10.1007/s004660050309	en
dc.identifier.isi	ISI:000074177700009	en
dc.identifier.volume	21	en
dc.identifier.issue	4-5	en
dc.identifier.spage	330	en
dc.identifier.epage	338	en