Prediction of ultra-low cycle fatigue at steel welded beam-to-column joints [Ultra-kurzzeitermüdung geschweißter träger-stützen knotenverbindungen aus stahl]

Karlos, V; Vayas, I

dc.contributor.author	Karlos, V	en
dc.contributor.author	Vayas, I	en
dc.date.accessioned	2014-03-01T02:12:03Z
dc.date.available	2014-03-01T02:12:03Z
dc.date.issued	2012	en
dc.identifier.issn	00056650	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29995
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-84858645700&partnerID=40&md5=7efeadb4bafbb3da603ddafe52b8b52b	en
dc.title	Prediction of ultra-low cycle fatigue at steel welded beam-to-column joints [Ultra-kurzzeitermüdung geschweißter träger-stützen knotenverbindungen aus stahl]	en
heal.type	journalArticle	en
heal.publicationDate	2012	en
heal.abstract	The seismic response of a structure depends considerably on its ductility, meaning its attitude to sustain large plastic deformations and to dissipate energy without occurrence of brittle fracture mechanisms. Sufficient deformation capacity of plastically designed steel members is essential to ensure structural integrity and plastic resistance. Ductility in steel structures is influenced by fatigue and buckling that may lead to premature failure of the structure or of individual members. Under seismic loading it has been noted premature brittle failure at welded connections of moment resisting frames without prior signs of plastic deformation. The mechanisms involved in the energy dissipation from the material, give rise to a technique that allows the prediction of crack initiation in various types of hinges as will be shown at the present study. Ultra-low-cycle fatigue, which is the typical case in seismic type failures, is avoided by using suitable limits for the inter-storey drift according to each structural detail. Part of this research was included in the project ""PLASTOTOUCH"" [1] which aim was to establish an approach for the quantification of the upper shelf toughness to allow for a safe plastic design of steel structures.	en
heal.journalName	Bauingenieur	en
dc.identifier.volume	87	en
dc.identifier.issue	MARCH	en
dc.identifier.spage	130	en
dc.identifier.epage	136	en