Abstract
This paper describes the use of models of fracture-plastic materials for reinforced concrete in numerical modelling of beams made from reinforced concrete. The purpose of the paper is to use of a model of concrete for modelling of a behaviour of reinforced concrete beams which have been tested at the University of Toronto within re-examination of classic concrete beam tests. The original tests were performed by Bresler- Scordelis. A stochastic modelling based on LHS (Latin Hypercube Sampling) has been performed for the reinforced concrete beam. An objective of the modelling is to evaluate the total bearing capacity of the reinforced concrete beams depending on distribution of input data. The beams from the studied set have longitudinal reinforcement only. The beams do not have any shear reinforcement. The software used for the fracture-plastic model of the reinforced concrete is the ATENA.
Highlights
This paper describes the use of models of fracture-plastic materials for reinforced concrete in numerical modelling of beams made from reinforced concrete
The purpose of the paper is to use of a model of concrete for modelling of a behaviour of reinforced concrete beams which have been tested at the University of Toronto within re-examination of classic concrete beam tests
Because the design standards require that uncertainty should be considered in input data, the non-linear analysis is supported by the stochastic modelling which makes it possible to describe better the real behaviour and bearing capacity of the structure
Summary
It is used, in particular, in bearing structures in structural and civil engineering. The concrete behaves differently if subject to tension or if subject to compression For this reason, a non-linear analysis should be used in calculations. More intensive use of the concrete and the need to carry out a detailed analysis have resulted in availability of many source documents and computational models for the concrete. Creation of such source documents have been among topics addressed by the International Federation for Structural Concrete (CEB-FIB) which issues recommendations and publications that are regarded as the starting point for creation of standards. Because the design standards require that uncertainty should be considered in input data, the non-linear analysis is supported by the stochastic modelling which makes it possible to describe better the real behaviour and bearing capacity of the structure
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