Possibilities of using the nonlinear FEM model for partially loaded areas for high strength concrete
Author
Sokal, Piotr
Release date
2014
Place of publication
Brno
Publisher
Brno University of Technology. Faculty of Civil Engineering = Vysoké učení technické v Brnĕ. Fakulta stavební
Published in
JUNIORSTAV 2014 : 16th International Conference of PhD Students, 30.1.2014 : proceedings of annotations
JUNIORSTAV 2014 : 16. odborná konference doktorského studia s mezinárodní účastí, 30.1.2014 : sborník anotací
Language
English
Comments
UNIORSTAV 2014 : 16. odborná konference doktorského studia s mezinárodní účastí
JUNIORSTAV 2014 : 16th International Conference of PhD Students
Keywords
high strength concrete, nonlinear FEM, partially loaded area
Abstract
This paper is about possibilities of using the nonlinear finite element method concrete model for partially loaded areas. The model is based on several theories connected with compressive behaviour, smeared cracking and the influence of confinement. The theoretical model is compared with experimental results from tests conducted by Bonetti [1]. The compressive strength of concrete is around 53 MPa and 75 MPa. These results are also compared with EC2 [2] provisions. It is shown that results from calculations according to EC2 are less accurate than from proposed model. However, the FEM model gives results which are too high. This model was previously tested on normal concrete and it gives the average error around 8%. Here it is 26% and 31% depending on the strength of concrete.
