Model uncertainties in numerical simulations of reinforced concrete structures | Zendy

Cervenka Vladimir | Zendy; Cervenka Jan | Zendy; Kadlec Lukas | Zendy

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Model uncertainties in numerical simulations of reinforced concrete structures

Author(s) -

Cervenka Vladimir,

Cervenka Jan,

Kadlec Lukas

Publication year - 2018

Publication title -

structural concrete

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.912

H-Index - 34

eISSN - 1751-7648

pISSN - 1464-4177

DOI - 10.1002/suco.201700287

Subject(s) - structural engineering , nonlinear system , finite element method , brittleness , computer simulation , range (aeronautics) , safety factor , constitutive equation , engineering , computer science , materials science , simulation , physics , quantum mechanics , composite material , aerospace engineering

Numerical simulation based on the nonlinear fine element analysis requires a global safety format, which includes a model uncertainty. A general method for assessment of a global safety factor of model uncertainty is proposed for a particular resistance model. A set of 33 laboratory tests of reinforced concrete elements published by other authors is used for the model validation. It covers a wide range of failure models from brittle to ductile, and the member cross section size range from 0.1 to 4 m. The numerical model used for simulation is the fracture‐plastic constitutive model for concrete developed by the authors and implemented in the nonlinear finite element analysis in a commercial software.

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