The influence of prestressing on the twisting phenomenon of beams

Michaltsos, GT; Raftoyiannis, IG

dc.contributor.author	Michaltsos, GT	en
dc.contributor.author	Raftoyiannis, IG	en
dc.date.accessioned	2014-03-01T11:47:19Z
dc.date.available	2014-03-01T11:47:19Z
dc.date.issued	2012	en
dc.identifier.issn	09391533	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/38120
dc.subject	Prestressing	en
dc.subject	Rectilinear tendons	en
dc.subject	Steel beams	en
dc.subject	Twisting instability	en
dc.title	The influence of prestressing on the twisting phenomenon of beams	en
heal.type	other	en
heal.identifier.primary	10.1007/s00419-012-0665-x	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s00419-012-0665-x	en
heal.publicationDate	2012	en
heal.abstract	The prestressing technique is often employed in engineering practice to increase the bearing capacity of concrete beams in bending. Nevertheless, prestressing has been also applied successfully in numerous cases of steel members, bars or trusses. Whilst in members with concrete sections buckling instability is unlikely to occur, the phenomenon of twisting instability may appear in prestressed steel beams under bending as a special case of the lateral-torsional instability. In the present work, the influence of prestressing on the stability (twisting instability) of a simply supported beam induced by a rectilinear tendon is thoroughly studied. Useful results are gathered and presented in the form of interaction axial force-moment diagrams that can be used for a preliminary design of beams against twisting instability. © 2012 Springer-Verlag.	en
heal.journalName	Archive of Applied Mechanics	en
dc.identifier.doi	10.1007/s00419-012-0665-x	en
dc.identifier.spage	1	en
dc.identifier.epage	10	en