Non‐linear finite element analysis of post‐tensioned concrete structures

Zeljana Nikolic (Faculty of Civil Engineering, University of Split, Croatia)
Ante Mihanovic (Faculty of Civil Engineering, University of Split, Croatia)

Engineering Computations

ISSN: 0264-4401

Publication date: 1 August 1997


Presents a non‐linear numerical model for the computations of post‐tensioned plane structures. Generally curved prestressing tendons and reinforcing bars are embedded into the concrete and they are modelled independently of the concrete mesh using one‐dimensional curvilinear elements. Among the losses which influence the decrease in the prestress force, it is possible to compute the losses caused by friction between tendons and the concrete, the losses which result from the concrete deformation and the losses in the anchorage zone. The computation for post‐tensioned structures is organized in phases: the phase preceding prestressing (Phase I), the prestressing phase (Phase II) and the phase following prestressing (Phase III). The load is applied incrementally until failure. The model is tested on a number of examples.



Nikolic, Z. and Mihanovic, A. (1997), "Non‐linear finite element analysis of post‐tensioned concrete structures", Engineering Computations, Vol. 14 No. 5, pp. 509-528.

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Copyright © 1997, MCB UP Limited

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