Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 112, Issue -, Pages 100-111Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2016.02.157
Keywords
Push-off; Shear; Reinforced concrete; Steel fibres; Photogrammetry
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Funding
- Universitat Politecnica de Valencia [PAID-06-11]
- Spanish Ministry of Economy and Competitiveness [BIA2012-35776]
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This paper aims at studying the shear contribution of steel fibres in concrete. Ten reinforced concrete (RC) and steel-fibre reinforced concrete (SFRC) initially uncracked push-off specimens were tested. Average normal and transverse strains at the vicinity of the shear plane were measured by photogrammetry with good accuracy. Experimental results reveal that constant shear stress flow assumption is adequate. SFRC specimens exhibited greater shear stiffness compared to RC. Moreover, shear effectiveness of fibres after diagonal cracking seems significantly dependent on reinforcement crossing the shear plane. Numerical modelling of RC and SFRC push-off specimens shows good global behaviour. (c) 2016 Elsevier Ltd. All rights reserved.
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