2011
DOI: 10.1016/j.conbuildmat.2011.04.045
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Influence new-to-old concrete interface qualities on the behaviour of support zones of composite concrete beams

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Cited by 38 publications
(30 citation statements)
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“…Most previous researches [2]- [5] about the PC-CIP composite members have been focused on horizontal shear strength rather than vertical shear strength because monolithic behavior of composite members is the most critical factor to resist flexure and shear. The effect of surface smoothness, shear span-to-depth ratio, shear reinforcement, height of surfaces, and concrete strength on the horizontal shear strength of composite beams was investigated by Seamann et al [2], Loov [3], Kahn [4] and Halicka [5]. However, due to aforementioned shear design problem, vertical shear strength of composite members should be researched in the case of using quite different concrete strengths.…”
Section: Introductionmentioning
confidence: 99%
“…Most previous researches [2]- [5] about the PC-CIP composite members have been focused on horizontal shear strength rather than vertical shear strength because monolithic behavior of composite members is the most critical factor to resist flexure and shear. The effect of surface smoothness, shear span-to-depth ratio, shear reinforcement, height of surfaces, and concrete strength on the horizontal shear strength of composite beams was investigated by Seamann et al [2], Loov [3], Kahn [4] and Halicka [5]. However, due to aforementioned shear design problem, vertical shear strength of composite members should be researched in the case of using quite different concrete strengths.…”
Section: Introductionmentioning
confidence: 99%
“…All these methods have been proven efficient in enhancing the load capacity and the ductility of elements [7]. In all cases, the shear transfer mechanisms of the interface affect the transferring of loads and the effectiveness of the retrofit method, constituting its design crucial and of high interest [8], [9]. More specifically, in cases of strengthening with RC jacketing the main mechanisms that act are concrete-toconcrete cohesion and friction (aggregate interlock) and dowel action of the reinforcement the interface between old and new concrete (dowels, tack-welds, butt-welds, bend down bars etc.…”
Section: Introductionmentioning
confidence: 99%
“…Recently, the study of the interphase zone between the overlay and concrete substrate mainly consisted of macroscopic investigations using the previously mentioned "adhesion maps", which were created with the use of the pull-off method [8,9] or by testing the interphase zone between large-scale concrete elements using bending [10,11], shear [12,13] and flexural strength [14][15][16]. Rough "adhesion maps" were also made based on results obtained using impact-echo and ultrasonic echo methods [17].…”
Section: Literature Reviewmentioning
confidence: 99%