2.2 Cracking analysis of FRP reinforced concrete tension members
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Published:2002
M A Aiello, M Leone, L Ombres, 2002. "2.2 Cracking analysis of FRP reinforced concrete tension members", Advanced polymer composites for structural applications in construction: Proceedings of the first international conference, held at Southampton University, UK, on 15–17 April 2002, R A Shenoi, S S J Moy, L C Hollaway
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The paper is devoted to the analysis of cracking evolution of Fiber Reinforced Polymers (FRP) reinforced concrete tension members and, as consequence, their deformability in terms of load-elongation relationships. Such analysis allows to determine the tension stiffening effects. The stiffness of the reinforced tension members, in fact, can be evaluated and compared with that corresponding to the naked rebars; the obtained scatter gives a measure of the reduced deformability due to the contribution of the tensile concrete.
Results of an experimental investigation, carried out on cylindrical concrete specimens in order to analyse the influence of geometrical properties on cracking and deformability of the members, are reported in the paper. Comparison with results obtained from a theoretical analysis and from Codes relationship are also made, aiming to give useful information from a design point of view.
INTRODUCTION
EXPERIMENTAL INVESTIGATION
MATERIALS
SPECIMENS AND TEST SET-UP
EXPERIMENTAL RESULTS
THEORETICAL ANALYSIS
THE DESIGN MODEL
COMPARISON BETWEEN MODELS
CONCLUSIONS
REFERENCES
