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Vol. 29. Issue 1.
Materiais 2015
Pages e182-e186 (January - April 2017)
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Vol. 29. Issue 1.
Materiais 2015
Pages e182-e186 (January - April 2017)
DOI: 10.1016/j.ctmat.2016.04.004
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Shear resistance of concrete reinforced with ultra-high strength steel fibres
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José Gomesa, Carlos Sousab,
Corresponding author
cfsousa@fe.up.pt

Corresponding author.
, Mário Pimentelb, Ana Maria Proençaa, A. Serra Nevesb
a LEMC, Faculty of Engineering (FEUP), University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
b CONSTRUCT-LABEST, Faculty of Engineering (FEUP), University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
Article information
Abstract

In order to evaluate the performance of high strength concrete reinforced with Dramix 5D 65/60 BG fibres, with non-deformable hook and ultra-high tensile strength, 24 beams were subjected to shear, with different fibre content (0, 15, 30 and 50kg/m3), with and without stirrups in the shear span. In a second test campaign, 18 of those beams were tested again in the opposite end, with a variable shear span/effective depth (a/d) ratio in order to evaluate the influence of this parameter in the shear crack pattern and shear resistance. A probabilistic approach was followed to derive the corresponding design value of the shear strength (a procedure herein named by Design Assisted by Testing, DAT), which was then compared with the design shear strength determined according to recommendations of RILEM, EHE and FIB. Test results of both campaigns showed a significant increase in shear strength in relation to beams without fibres. Besides that, the design values of the shear strength derived from test results (DAT) were considerably higher than the design shear resistance provided by design codes.

Keywords:
Fibre reinforced concrete
shear resistance
experimental analysis
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References
[1]
E. Cuenca, J. Echegaray, P. Serna.
Composites, Part B, 75 (2015), pp. 135
[2]
E. Cuenca, J. Echegaray, P. Serna, A. Pasetto.
Proceedings of BEFIB 2012-8th RILEM International Symposium on Fibre Reinforced Concrete: Challenges and Opportunities.
Guimarães, (2012), pp. 1370-1382
[3]
A. Meda, F. Minelli, G.A. Plizzari, P. Riva.
Mater. Struct., 38 (2005), pp. 343
[4]
C. Cucchiara, L. La Mendola, M. Papia.
Cem. Concr. Compos., 26 (2004), pp. 777
[5]
S. Furlan Jr., J.B. de Hanai.
Cem. Concr. Compos., 19 (1997), pp. 359
[6]
J. Gomes.
Faculdade de Engenharia da Universidade do Porto.
Porto, (2013),
MSc thesis
[7]
N. Ferreira.
Faculdade de Engenharia da Universidade do Porto.
Porto, (2008),
MSc thesis
[8]
Bekaert.
Dramix 5D Data Sheet, (2012),
[9]
RILEM. TC 162-TDF, Test and design methods for steel fibre reinforced concrete, σ-?? design method. Final recommendation, Materials and Structures, 36 (2003) pp. 560-567.
[10]
EHE. Code on structural concrete - articles and annexes, 2008.
[11]
fib. Model Code for Concrete Structures 2010, 2013.
[12]
EN12390-3: Testing hardened concrete. Compressive strength of test specimens, 2009.
[13]
DIN 1048-5: Testing concrete. Testing of hardened concrete, 1991.
[14]
EN12390-6: Testing hardened concrete. Tensile splitting strength of test specimens, 2009.
[15]
RILEM CPC7: Direct Tension of Concrete Specimens, 1975 (TC14-CPC), RILEM, E&FN Spon, UK, 1994, pp. 23-24.
[16]
EN12390-5: Testing hardened concrete. Flexural strength of test specimens, 2009.
[17]
EN14651: Test method for metallic fibre concrete, 2005.
[18]
EN1990: Eurocode – Basis for structural design, 2009.
[19]
EN14845-2: Test methods for fibres in concrete - Part 2: Effect on concrete, 2006.
Copyright © 2017. Portuguese Society of Materials (SPM)
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