Numerical Analysis of the Influence of the Parameter of Ductility of Reinforcing Steel on the Behaviour of Narrow Three-Span Reinforced Concrete Slabs from the Point of View of Experimental Investigations

Abstract:

In the time of exploitation of building structures frequently situations do occur, in which due to failures they are exposed to much higher loads than originally predicted. The subject matter of the performed investigations and a numerical analysis are models of four narrow reinforced concrete slabs with the dimensions 7140×500×190 mm. The paper presents the results of the numerical analysis, the aim of which was to reflect and to provide detailed information about phenomena occurring in the course of laboratory tests. Numerical models were constructed according to the system ANSYS, applying volumetric elements SOLID65 and bars LINK8. In order to determine the relation σ-ε of steel an isotropic model of strengthening in the system ANSYS was used, constructed by Misses. The behaviour of concrete was represented by the material model Concrete. The parameters applied in the material models had been obtained in laboratory tests of the material. The paper quotes the results of calculations compared with the results obtained in laboratory tests.

• Periodical: Applied Mechanics and Materials (Volume 769)
• Pages: 133-138
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.769.133
• Online since: June 2015
• Authors: Mirosław Wieczorek*
• Keywords: Concrete Structures, Numerical Modelling, Progressive Collapse, Steel with High Ductility

References

[1] M. Wieczorek, Experimental investigations concerning narrow three-span reinforced concrete slabs reinforced with steel of varying ductility, 26th Symposium Experimental Mechanics of Solids, Jachranka, Poland, October 22÷25, (2014).

DOI: 10.4028/www.scientific.net/amm.769.133

[2] M. Wieczorek, Narrow reinforced concrete slabs after their flexural destruction, Advanced Materials Research, Advanced Materials Research, Vol. 969, (2014).

DOI: 10.4028/www.scientific.net/amr.969.271

[3] M. Wieczorek, Numerical analysis of narrow single-span, gravitationally loaded concrete slabs reinforced steel with a mean ductility, 20th International Conference Engineering Mechanics, Svratka, Czech Republic, May 12 – 15, (2014).

[4] PN-EN 1992-1-1: 2004/AC Eurocode 2, Design of concrete structures - Part 1-1: General rules and rules for buildings, European Standard, (2010).

[5] B. Wieczorek, Idea of a simplified model to determination of the load capacity of and inner slab-column connection after its punching, Procedia Engineering, Vol. 65, (2013).

DOI: 10.1016/j.proeng.2013.09.022

[6] B. Wieczorek, Experimental tests for the analysis of a load-bearing capacity of an internal slab-column connection after its punching at various positions of the column, Advanced Materials Research, Vol. 969, (2014).

DOI: 10.4028/www.scientific.net/amr.969.169

[7] B. Wieczorek, Load capacity of an internal slab-column connection depending on the geometric parameters of the reinforcement, Advanced Materials Research, Vol. 969, (2014).

DOI: 10.4028/www.scientific.net/amr.969.234

[8] A.F. Barbosa, A study of models for nonlinear finite element analysis of concrete structures (Dissertation for attainment of Master Degree), Federal University of Minas Gerais, (1997).

[9] M. Sh. Mahmood, A.M. Ibrahim, Finite element modeling of reinforced concrete beams strengthened with FRP laminates, European Journal of Scientific Research, Vol. 30 No. 4., (2009).

[10] B. Wieczorek, Load-bearing capacity of reinforcing bars in the zone of the slab-column connection determined experimentally and in the result of numerical calculations, Procedia Engineering, Vol. 65, (2013).

DOI: 10.1016/j.proeng.2013.09.025

[11] SAS, ANSYS 7. 1 Finite Element Analysis System, SAS IP, Inc., (2003).

[12] M.Y.H. Bangash, Concrete and concrete structures: numerical modeling and applications, Elsevier Science Publishers Ltd., London, (1989).

[13] Y. Hemmaty, Modeling of the shear force transferred between cracks in reinforced and fibre reinforced concrete structures, in: Proc. of the ANSYS Conf., Vol. 1, Pittsburgh, PA (1998).

[14] D. Kachlakev, T. Miller, FE modeling of reinforced concrete structures strengthened with FRP lamiates, Final Report SPR 316, Oregon State University, (2001).