Print Email Facebook Twitter Non-linear finite element analyses applicable for the design of large reinforced concrete structures Title Non-linear finite element analyses applicable for the design of large reinforced concrete structures Author Engen, M (Multiconsult ASA; Norwegian University of Science and Technology (NTNU)) Hendriks, M.A.N. (TU Delft Applied Mechanics; Norwegian University of Science and Technology (NTNU)) Øverli, Jan Arve (Norwegian University of Science and Technology (NTNU)) Åldstedt, Erik (Multiconsult ASA) Date 2017-07-21 Abstract In order to make non-linear finite element analyses applicable during assessments of the ultimate load capacity or the structural reliability of large reinforced concrete structures, there is need for an efficient solution strategy with a low modelling uncertainty. A solution strategy comprises choices regarding force equilibrium, kinematic compatibility and constitutive relations. This contribution demonstrates four important steps in the process of developing a proper solution strategy: (1) definition, (2) verification by numerical experiments, (3) validation by benchmark analyses and (4) demonstration of applicability. A complete solution strategy is presented in detail, including a fully triaxial material model for concrete, which was adapted to facilitate its implementation in a standard finite-element software. Insignificant sensitivity to finite element discretisation, load step size, iteration method and convergence tolerance were found by numerical experiments. A low modelling uncertainty, denoted by the ratio of experimental to predicted capacity, was found by comparing the results from a range of experiments to results from non-linear finite element predictions. The applicability to large reinforced concrete structures is demonstrated by an analysis of an offshore concrete shell structure. Subject large concrete shell structuresmodelling uncertaintyNon-linear finite element analysespractical applicationsstructural designultimate load capacity To reference this document use: http://resolver.tudelft.nl/uuid:d2bf6391-5f6e-4d2a-a43a-0d50b77b5f13 DOI https://doi.org/10.1080/19648189.2017.1348993 Embargo date 2018-08-01 ISSN 1964-8189 Source European Journal of Environmental and Civil Engineering, 23 (2019) (11), 1381-1403 Part of collection Institutional Repository Document type journal article Rights © 2017 M Engen, M.A.N. Hendriks, Jan Arve Øverli, Erik Åldstedt Files PDF Non_linear_finite_element ... alyses.pdf 4.91 MB Close viewer /islandora/object/uuid:d2bf6391-5f6e-4d2a-a43a-0d50b77b5f13/datastream/OBJ/view