Shortcomings of code methods for shear design of rc structures and the possible role of fibres

Kotsovos, MD; Pavlovic, MN

dc.contributor.author	Kotsovos, MD	en
dc.contributor.author	Pavlovic, MN	en
dc.date.accessioned	2014-03-01T01:55:28Z
dc.date.available	2014-03-01T01:55:28Z
dc.date.issued	2006	en
dc.identifier.issn	14665123	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/27745
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-33845747722&partnerID=40&md5=b7d1796ae211214dcd3d40b69da47dfd	en
dc.subject	Beams	en
dc.subject	Earthquake resistance	en
dc.subject	Eeurocode 8	en
dc.subject	Eurocode 2	en
dc.subject	Fibres	en
dc.subject	Reinforced concrete	en
dc.subject	Shear	en
dc.subject	Simply supported	en
dc.subject	Testing	en
dc.subject.other	Load-carrying capacity	en
dc.subject.other	Reinforced-concrete beams	en
dc.subject.other	Shear failure	en
dc.subject.other	Brittleness	en
dc.subject.other	Codes (standards)	en
dc.subject.other	Ductility	en
dc.subject.other	Earthquake resistance	en
dc.subject.other	Shear strength	en
dc.subject.other	Structural design	en
dc.subject.other	Reinforced concrete	en
dc.title	Shortcomings of code methods for shear design of rc structures and the possible role of fibres	en
heal.type	journalArticle	en
heal.publicationDate	2006	en
heal.abstract	This paper makes use of data obtained from tests on simply-supported reinforced-concrete beams with an overhang, which were designed In compliance with the earthquake-resistant design clauses of the European codes EC 2 and EC 8. The test data reveal that Increasing the amount of link reinforcement within the critical regions beyond the amount required to safeguard against shear failure does not lead to beam behaviour that satisfies the performance requirements for strength and ductility specified by the codes. This experimental evidence Is complemented by an analytical investigation based on nonlinear finite-element analysis, which not only shows that the causes of the measured and observed specimen behaviour relate to the brittle nature of concrete at the material level, but also demonstrates that Imparting concrete with strain-softening characteristics - through, for example, the inclusion of fibres - produces a significant increase in both load-carrying capacity and ductility.	en
heal.journalName	Structural Engineer	en
dc.identifier.volume	84	en
dc.identifier.issue	23-24	en
dc.identifier.spage	44	en
dc.identifier.epage	49	en