Naslov
The influence of space curvature of prestressing tendon in the nonlinear analysis of PC structures

Autori
Galić, Mirela ; Nikolić, Željana ; Marović, Pavao

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Proceedings of the 6th International Congress of the Croatian Society of Mechanics / Smojver, Ivica ; Sorić, Jurica - Zagreb : Hrvatsko društvo za mehaniku (HDM), 2009, 44-44

ISBN
978-953-7539-10-8

Skup
6th International Congress of the Croatian Society of Mechanics

Mjesto i datum
Dubrovnik, Hrvatska, 30.09.2009. - 02.10.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
space curvature; prestressing tendon; nonlinear analysis; prestressed concrete

Sažetak
This paper presents the influence of space curvature of prestressing tendon in the nonlinear analysis of prestressed concrete (PC) structures. The nonlinear behaviour of prestressing tendons was described by the one dimensional elasto-viscoplastic model. The tendon element geometry is described by the second order space function which is determined by its projections. These elements make it possible to model arbitrarily curved reinforcing bars and prestressing tendons in space, thus they can be determined independently of the 3D finite element mesh. This is very important in the case when the prestressing tendon can not be located in a plane. The transfer of prestressing force on the concrete was modelled numerically. The developed model makes it possible to compute prestressing structures in phases: before prestressing, during prestressing and after prestressing. The described models are implemented in the computer programme for a 3D numerical analysis of the prestressed concrete structures where the structures are discretized by three-dimensional finite elements with an embedded one-dimensional element of reinforcing bars and/or prestressing tendons.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti

POVEZANOST RADA