Original scientific paper

https://doi.org/10.14256/JCE.3157.2021

Experimental investigation of preload losses in high strength bolts under cyclic loading

Nenad Fric
Milan Veljković
Zoran Mišković
Dragan Buđevac

Abstract

Slip-resistant shear connections with preloaded bolts have traditionally been used in steel structures exposed to cyclic. Hence, shear load is transferred through friction surfaces rather than through contact between the bolt surface and the hole. The main influencing parameters determining slip resistance of the connection are the friction between contact surfaces and the bolt preload level. This paper presents an experimental study of preloaded bolted connections under cyclic load, the main objective being to investigate the influence of cyclic load on the losses of preload force in high strength bolts and lock bolts.

Keywords

high strength bolt, preload force, preload loss, slip factor, cyclic load

Hrčak ID:

259292

URI

https://hrcak.srce.hr/259292

Publication date:

20.6.2021.

Article data in other languages: croatian

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