Soft Insert for Support Modeling of Slightly Textile Reinforced Concrete

Abstract:

This paper presents a model of small experimental facade panel using four-point bending test. The facade panel with dimensions 100 x 360 mm and thickness approximately 18 mm was slightly reinforced using two layers of impregnated technical fabric from AR-glass roving. The amount of reinforcement in cross-sectional area of the concrete element is small and it is a reason of plastic joints initiation under the loading supports. The purpose of this experiment was validation of all used material parameters from the previous research in the program for nonlinear analysis of concrete and reinforced concrete Atena Engineering. For slightly reinforced concrete elements are monitored parameters better visible especially interaction between reinforcement and used concrete. The load transfer to the concrete element from the testing machine is typically modeled using some small steel plate. This paper shows the difference in results if we insert another flexible plate between the steel plate and the concrete element with a small defined stiffness.

• Periodical: Key Engineering Materials (Volume 760)
• Pages: 158-163
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.760.158
• Online since: January 2018
• Authors: Tomáš Vlach*, Lenka Laiblová, Michal Ženíšek, Jakub Řepka, Petr Hájek
• Keywords: Ar-Glass Fiber Roving, Atena Engineering, High Performance Concrete (HPC), Numerical Modeling, Textile Reinforced Concrete (TRC), Textile Reinforcement

References

[1] P. Reiterman, M. Jogl, V. Baumelt, J. Seifrt, Development and Mix Design of HPC and UHPFRC, Adv. Mater. Res. 982 (2014) 130-135.

DOI: 10.4028/www.scientific.net/amr.982.130

[2] W. Kubissa, T. Simon, R. Jaskulski, P. Reiterman, M. Supera, Ecological High Performance Concrete, Procedia Eng. 172 (2017) 595–603.

DOI: 10.1016/j.proeng.2017.02.186

[3] R. Chudoba, M. Konrad, M. Vorechovsky, A. Roye, Numerical and experimental study of imperfections in the yarn and its bond to cementitious matrix, Spec. Publ., vol. 244, p.39–56, (2007).

DOI: 10.14359/18751

[4] R. Chudoba, M. Vořechovský, M. Konrad, Stochastic modeling of multi-filament yarns. I. Random properties within the cross-section and size effect, Int. J. Solids Struct. 43(2006) 413–434.

DOI: 10.1016/j.ijsolstr.2005.06.063

[5] J. Hegger, N. Will, O. Bruckermann, S. Voss, Load–bearing behaviour and simulation of textile reinforced concrete, Mater. Struct. 39/8 (2006) 765–776.

DOI: 10.1617/s11527-005-9039-y

[6] W. Graf, A. Hoffmann, B. Möller, J. -U. Sickert, F. Steinigen, Analysis of textile-reinforced concrete structures under consideration of non-traditional uncertainty models, Eng. Struct. 29/12 (2007) 3420–3431.

DOI: 10.1016/j.engstruct.2007.08.013

[7] B. Möller, W. Graf, A. Hoffmann, F. Steinigen, Numerical simulation of RC structures with textile reinforcement, Comput. Struct. 83/19 (2005) 1659–1688.

DOI: 10.1016/j.compstruc.2004.11.024

[8] J. Hartig, U. Häußler-Combe, and K. Schicktanz, Influence of bond properties on the tensile behaviour of Textile Reinforced Concrete, Cem. Concr. Compos. 30/10 (2008) 898–906.

DOI: 10.1016/j.cemconcomp.2008.08.004

[9] T. Vlach, A. Chira, L. Laiblová, C. Fiala, M. Novotná, P. Hájek, Numerical Simulation of Cohesion Influence of Textile Reinforcement on Bending Performance of Plates Prepared from High Performance Concrete (HPC), Adv. Mater. Res. 1106 (2015).

DOI: 10.4028/www.scientific.net/amr.1106.69

[10] T. Vlach, L. Laiblová, A. Chira, M. Novotná, C. Fiala, M. Ženíšek, P. Hájek, Comparison of Different Methods for Determination of Modulus of Elasticity of Composite Reinforcement Produced from Roving, Adv. Mater. Res. 1054 (2014) 104-109.

DOI: 10.4028/www.scientific.net/amr.1054.104

[11] V. Cervenka, J. Cervenka, and R. Pukl, ATENA — A tool for engineering analysis of fracture in concrete, Sadhana 27/4 (2002) 485–492.

DOI: 10.1007/bf02706996

[12] T. Vlach, M. Novotná, C. Fiala, L. Laiblová, and P. Hájek, Cohesion of Composite Reinforcement Produced from Rovings with High Performance Concrete, Appl. Mech. Mater., vol. 732, p.397–402, (2015).

DOI: 10.4028/www.scientific.net/amm.732.397