Comparison of Methods for Crack Development State for Steel Fibre Reinforced Concrete

Abstract:

Fibre reinforced concrete is a composite material that is increasingly used in construction practice. An often-discussed problem regarding the fibre reinforced concrete is the crack development state and post-cracking behaviour. The paper compares the calculations done according to the Eurocode design and calculations done according to the older procedure given by ČSN standard. The calculations are also compared with the calculations done using the SCIA Engineer software. From the obtained results, the complexity of the calculation, the amount of coefficients, and the variance of value given the current standards is evident.

• Periodical: Solid State Phenomena (Volume 322)
• Pages: 48-53
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.322.48
• Online since: August 2021
• Authors: Luboš Musil*, Martin Tipka, Hana Hanzlová, Jan Vodicka
• Keywords: Cracking, Fibre Reinforced Concrete, Serviceability Limit State

References

[1] Ráček, V., Vodička, J., Krátký, J. (2015). Comparison of MC 2010 and ČSN 73 2452 - steel fibre reinforced concrete classification into the strength classes [online].[cit. 2020-10-07]. https://stavba.tzb-info.cz/beton-malty-omitky/13029-srovnani-mc-2010-a-csn-73-2452-pri-zatrideni-dratkobetonu-do-pevnostni-tridy. (In Czech).

[2] Krátký, J., Trtík, K., Vodička, J.,Commentary and Examples to Steel Fibre Reinforced Concrete Structures Directive, first ed., Dr. Eduard Grégr a syn, Prague 1999. (In Czech).

[3] Dlouhý, L., Pouillon, S. (2019). Application of the design code for steel fibre reinforced concrete into finite element software. IOP Conference Series: Materials Science and Engineering. 596:012009.

DOI: 10.1088/1757-899x/596/1/012009

[4] DAfStb guidelines, 2011: DAfStb-Richtlinie Stahlfaserbeton. Deutscher Ausschuss für Stahlbeton - DAfStb, Berlin, German. (In German).

DOI: 10.1002/best.200900067

[5] Eurocode 2, Design of Concrete Structures - Part 1-1: General Rules and Rules for Buildings, CEN, EN 1992-1-1.

[6] ČSN P 73 2452: Fibre-reinforced concrete - Testing of hardened fibre-reinforced concrete. ÚNMZ, Prague. (2015).

[7] ČSN 73 1201: Design of concrete structures of buildings. ÚNM Prague, (1988).

[8] Tipka, M.; Vašková, J., Vodička, J. (2017): Tensile Strength Tests for Concrete and Fibre Reinforced Concrete, In: Proceedings from 24th Concrete Day 2017, Solid State Phenomena. Curich, Switzerland.

DOI: 10.4028/www.scientific.net/ssp.272.94

[9] RILEM TC 162 - TDF: Test and Design Methods for Steel Fibre Reinforced Concrete, Material and Structures, (2003).

DOI: 10.1617/13628

[10] fib – International Federation for Structural Concrete: fib - Model Code for Concrete Structures 2010, Ernst & Sohn,. Berlin, (2013).

DOI: 10.1002/9783433604090

[11] Hulett, T. & Clarke, J.. (2003). Technical report 34 (third edition) - Concrete industrial ground floors: A guide to design and construction.

[12] ČSN EN 14889 - 1 Fibres for concrete - Part 1: Steel fibres - Definitions, specifications and conformity. ČNI. (2007).

DOI: 10.3403/30110332

[13] ČSN EN 14889 – 2 Fibres for concrete - Part 2: Polymer fibres - Definitions, specifications and conformity. ČNI. (2007).

DOI: 10.3403/30110335

[14] ČSN P 73 2450 Fibre-reinforced concrete - Specification, performance, production and conformity. ČNI. (2015).

[15] ČSN P 73 2451 Fibre-reinforced concrete - Testing of fresh fibre-reinforced concrete. ČNI. (2015).

[16] ČSN P 73 2452 Fibre-reinforced concrete - Testing of hardened fibre-reinforced concrete. ČNI. (2015).