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Loss of pretension in bolted connections: influence of loading
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0003-4791-2341
2011 (English)In: Proceedings of the 6th European Conference on Steel and Composite Structures: Eurosteel 2011, August 31 - September 2, 2011, Budapest, Hungary, Budapest: European Convention for Constructional Steelwork, ECCS , 2011, p. 399-404Conference paper, Published paper (Refereed)
Abstract [en]

A common problem in bolted connections is the self-loosening effect of bolts over time. Therefore the remaining strength in a slip resistant connection can only roughly be estimated for a certain point of time. A possible solution ot avoid self-loosening is the use of lockbolts, which have been studied in order to achieve recommendations for connections which are "free from maintenance". The pretension force in the bolt unavoidably reduces over time due to creep of primer, forces in bolts and in plates. These effects are experimentally studied. For all types of connections this effect is very important and in this paper the focus is brought on lap joints, where the influence of various types of loading is examined.

Place, publisher, year, edition, pages
Budapest: European Convention for Constructional Steelwork, ECCS , 2011. p. 399-404
National Category
Building Technologies
Research subject
Steel Structures
Identifiers
URN: urn:nbn:se:ltu:diva-33098Local ID: 7e1363df-480a-47b7-8eca-9796633c31a8ISBN: 978-92-9147-103-4 (print)OAI: oai:DiVA.org:ltu-33098DiVA, id: diva2:1006333
Conference
European Conference on Steel and Composite Structures : 31/08/2011 - 02/09/2011
Note
Godkänd; 2011; 20120113 (andbra)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-06-08Bibliographically approved

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Heistermann, ChristineVeljkovic, Milan

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