List of Articles FRP Bars

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  1 - Investigation of Seismic Behavior of Concrete Structures Reinforced with FRP and Steel Bars
  arash dalili ramin vafaeipoor
  Considering the increasing use of FRP bars, as reinforcement in concrete structures, the study of the dynamic behavior of these types of structures and its behavioral comparison with steel reinforced concrete structures seem to be necessary. In this regard, in the prese More

  Considering the increasing use of FRP bars, as reinforcement in concrete structures, the study of the dynamic behavior of these types of structures and its behavioral comparison with steel reinforced concrete structures seem to be necessary. In this regard, in the present study, buildings with floors 2, 5, and 10 in two-dimensional and three-dimensional states were considered in two types of steel reinforced and FRP reinforced were modeled and analyzed in ABAQUS software. By using the results of the analysis, behavioral comparisons between these structures were carried out with a focus on displacement. By considering in the same conditions, the results of the analysis reveal that displacement in FRP-reinforced structures is more than steel-reinforced structures. Also, in the 2-storey building model, the relation between steel structures and FRP structures is linear with 90% regression coefficient was observed while in 5-storey buildings and 10-storey building’s behavior are nonlinear, with a regression coefficient of 89% and 87%, respectively. Manuscript profile
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  2 - Evaluation of nsm method for strengthening of rc two fixed-end beama with composite of cfrp bars
  mohammadkazeme sharbatdar mohammadreza mohamadiyan
       Near surface mounted (NSM) is a recent strengthening technique based on bonding carbon fiber reinforced polymer (CFRP) bars (rods or laminate strips) into pre-cut grooves on the concrete cover of the elements to strength. The corrosion or lack o More

       Near surface mounted (NSM) is a recent strengthening technique based on bonding carbon fiber reinforced polymer (CFRP) bars (rods or laminate strips) into pre-cut grooves on the concrete cover of the elements to strength. The corrosion or lack of steel bars in reinforced concrete members and the resulting deterioration of structures prompted research on fiber reinforced polymers (FRP) bars as potential reinforcement for concrete members, for use in new construction. These FRP bars can be used to increase flexural and shear capacity of existing concrete members at NSM (Near Surface Mounted) method.      The paper presents the details and results of the experimental and numerical programs. Two large-scale reinforced concrete beams were designed, constructed, and tested under one point concentrated loading system. The specimens had two fixed-end support. They were in same size and reinforcement characteristic. A new type of CFRP bar was proposed in this study, the CFRP bars were manually made in laboratory and were hooked at end for anchoring in concrete. The test results has been used to calibrate the analytical models. Moreover extra analytical work has done.      The results indicate that FRP bars can be used effectively in existing structures to increase their flexural capacity and change their crack pattern. Photographs taken at selected stages of loading illustrated the performance of each specimen. The force-displacement was presented and compared to find efficiency of FRP bars at NSM method. Manuscript profile