Nonlinear finite element analysis of concrete structures

N. Saabye Ottosen

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    Abstract

    This report deals with nonlinear finite element analysis of concrete structures loaded in the short-term up until failure. A profound discussion of constitutive modelling on concrete is performedj a model, applicable for general stress states, is described and its predictions are compared with experimental data. This model is implemented in the AXIPLANEprogram applicable for axisymmetric and plane structures. The theoretical basis for this program is given. Using the AXIPLANEprogram various concrete structures are analysed up until failure and compared with experimental evidence. These analyses include panels pressure vessel, beams failing in shear and finally a specific pull-out test, the Lok-Test, is considered. In these analyses, the influence of different failure criteria, aggregate interlock, dowel action, secondary cracking, magnitude of compressive strength, magnitude of tensile strength and of different post-failure behaviours of the concrete are evaluated. Moreover, it is shown that a suitable analysis of the theoretical data results in a clear insight into the physical behaviour of the considered structures. Finally, it is demonstrated that the AXIPLANE-program for widely different structures exhibiting very delicate structural aspects gives predictions that are in close agreement with experimental evidence.
    Original languageEnglish
    Place of PublicationRoskilde
    PublisherRisø National Laboratory
    Number of pages186
    ISBN (Print)87-550-0649-3
    Publication statusPublished - 1980
    SeriesDenmark. Forskningscenter Risoe. Risoe-R
    Number411
    ISSN0106-2840

    Keywords

    • Risø-R-411

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