Journal ArticleDOI
Experimental study on flexural behavior of splicing concrete-filled GFRP tubular composite members connected with steel bars
B.L. Chen,L.G. Wang +1 more
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TLDR
In this paper, the flexural behavior of splicing concrete-filled glass fiber reinforced polymer (GFRP) tubular composite members connected with steel bars was investigated and the results indicated the confinement effects of GFRP tubes on the concrete core in compression zone began to produce, when the load reached about 50%Pu (Pu-ultimate load).Abstract:
Based on the experiment, this paper focuses on studying flexural behavior of splicing concrete-filled glass fiber reinforced polymer (GFRP) tubular composite members connected with steel bars. The test results indicated the confinement effects of GFRP tubes on the concrete core in compression zone began to produce, when the load reached about 50%Pu (Pu-ultimate load), but the confinement effects in tensile zone was unobvious. In addition, the failure modes of composite members were influenced by the steel ratio of the joint. For splicing unreinforced composite members, the steel ratio more than 1.96% could satisfy the splicing requirements and the steel ratio 2.94% was ideal comparatively. For splicing reinforced specimen, the bearing capacity of specimen with 3.92% steel ratio was higher 21.4% than specimen with 2.94% steel ratio and the latter was higher 21.2% than the contrast non-splicing specimen, which indicated that the steel ratio more than 2.94% could satisfy the splicing requirements and both splicing ways used in the experiment were feasible. So, the optimal steel ratio 2.94% was suggested economically. The experimental results also indicated that the carrying capacity and ductility of splicing concrete-filled GFRP tubular composite members could be improved by setting internal longitudinal rebars.read more
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Journal ArticleDOI
Experimental investigation on behavior of splicing glass fiber–reinforced polymer-concrete–steel double-skin tubular columns under axial compression
TL;DR: In this paper , the axial bearing capacity of splicing DSTC composite members based on steel bar connection was designed and tested under axial compression to determine its mechanical performance, and the results showed that the GFRP tube presents apparent constraint effect on the concrete at about 60% of the ultimate load.
Journal ArticleDOI
Behavior of Splicing GFRP-Concrete-Steel Double-Skin Tubular Columns Subject to Eccentric Compression
TL;DR: In this paper, a splicing GFRP-concrete-steel double-skin tubular column (DSTC) was designed based on steel bar connection, and the mechanical performance under eccentric compression load was investigated.
Journal ArticleDOI
Flexural behavior of hybrid GFRP-reinforced concrete-steel double-skin tubular beams
TL;DR: The hybrid GFRP-concrete-steel double-skin tubular beams (DSTBs) as mentioned in this paper are composed of the outer gFRP tube, the inner steel tube and the sandwich concrete between both tubes.
Journal ArticleDOI
Experimental investigation on flexural performance of splicing glass fiber-reinforced polymer (GFRP)-Concrete-steel sandwich composite members
TL;DR: In this paper , the authors focused on the flexural performance of splicing glass fiber-reinforced polymer (GFRP)-concrete-steel sandwich composite members, and the splicing method based on connecting rebar satisfies the demand that the bearing capacity of a splicing member is greater than that of a continuous member.
Journal ArticleDOI
Flexural behaviour of hollow reinforced concrete-filled fibreglass tubular beams
TL;DR: An experimental and numerical study of the hollow reinforced concrete-filled glass-fibre reinforced polymer tubular beams was carried out as discussed by the authors , where the main parameters included the wall thickness of fibreglass tube, reinforcement ratio, hollow ratio, the concrete strength and the fibre winding angle.
References
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Journal ArticleDOI
Ultimate condition of fiber reinforced polymer-confined concrete
Linda Lam,Jinguang Teng +1 more
TL;DR: One important application of fiber reinforced polymer (FRP) composites is as a confining material for concrete in the retrofit of existing concrete columns by the provision of FRP jackets as discussed by the authors.
Journal ArticleDOI
Flexural Behavior of Concrete-Filled Fiber-Reinforced Polymer Circular Tubes
Amir Fam,Sami H. Rizkalla +1 more
TL;DR: In this article, the experimental results of large-scale concrete-filled glass fiber-reinforced polymer (GFRP) circular tubes and control hollow GFRP and steel tubes tested in bending were presented, showing that the flexural behavior is highly dependent on the stiffness and diameter-to-thickness ratio of the tube and to a much less extent on the concrete strength.
Journal ArticleDOI
Axial load behavior of large-scale columns confined with fiber-reinforced polymer composites
TL;DR: In this paper, Miyauchi et al. reported on an experimental and analytical study of axially-loaded large-scale columns confined with fiber-reinforced polymer (FRP) wrapping reinforcement.
Journal ArticleDOI
FRP-confined circular concrete-filled thin steel tubes under axial compression
Y M Hu,Tao Yu,Jinguang Teng +2 more
TL;DR: In this article, the authors present the results of an experimental study into the behavior of FRP-confined circular concrete-filled steel tubes (CCFTs) under axial compression, as part of a larger study undertaken at the Hong Kong Polytechnic University aimed at the development of a good understanding of the structural behavior of and reliable theoretical models for CCFTs.
Journal ArticleDOI
Behavior of Reinforced Concrete T-Beams Strengthened in Shear with Carbon Fiber-Reinforced Polymer--An Experimental Study
TL;DR: In this paper, an extensive experimental investigation on reinforced concrete T-beams retrofitted in shear with externally bonded carbon fiber-reinforced polymer (CFRP) is presented.
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