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Reliability-based bond design for GFRP-reinforced concrete
Abstract Most of proposed models available so far associated with the evaluation of design embedded length of fiber reinforced polymer (FRP) rods in concrete are not reliability-based. This paper made an attempt, from the probabilistic standpoint, to determine the design embedded length of a glass fiber reinforced polymer (GFRP) rod in the case of splitting bond failure from concrete. The mathematical model put forward by Orangun et al. for evaluating the average bond strength of reinforcing bars in concrete for splitting failure has been adopted to develop the nonlinear limit state function corresponding to GFRP’s splitting bond failure in which five independent random variables, i.e. concrete strength, GFRP tensile strength, embedded length, GFRP diameter and computational uncertainty factor, are included. As the result of the probabilistic calibration procedures using the Rackwitz–Fiessler method, a non-dimensional factor K associated closely with the design embedded length of a GFRP rod in concrete is proposed to be 0.0306 with the suggested additional target reliability index of 1.10. The effects of some factors on GFRP’s design embedded length have been identified through the following parametric study. Although the calibration process is case-dependent to some extent, the proposed formula is thought to be acceptable for general bond design purposes of GFRP-reinforced concrete components.
Reliability-based bond design for GFRP-reinforced concrete
Abstract Most of proposed models available so far associated with the evaluation of design embedded length of fiber reinforced polymer (FRP) rods in concrete are not reliability-based. This paper made an attempt, from the probabilistic standpoint, to determine the design embedded length of a glass fiber reinforced polymer (GFRP) rod in the case of splitting bond failure from concrete. The mathematical model put forward by Orangun et al. for evaluating the average bond strength of reinforcing bars in concrete for splitting failure has been adopted to develop the nonlinear limit state function corresponding to GFRP’s splitting bond failure in which five independent random variables, i.e. concrete strength, GFRP tensile strength, embedded length, GFRP diameter and computational uncertainty factor, are included. As the result of the probabilistic calibration procedures using the Rackwitz–Fiessler method, a non-dimensional factor K associated closely with the design embedded length of a GFRP rod in concrete is proposed to be 0.0306 with the suggested additional target reliability index of 1.10. The effects of some factors on GFRP’s design embedded length have been identified through the following parametric study. Although the calibration process is case-dependent to some extent, the proposed formula is thought to be acceptable for general bond design purposes of GFRP-reinforced concrete components.
Reliability-based bond design for GFRP-reinforced concrete
He, Zheng (Autor:in) / Tian, Guo-wen (Autor:in)
Materials and Structures ; 44 ; 1477-1489
18.03.2011
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Fiber reinforced polymer rod , Glass , Bond , Concrete , Reliability , Reliability index , Design embedded length , Splitting failure Engineering , Operating Procedures, Materials Treatment , Theoretical and Applied Mechanics , Civil Engineering , Materials Science, general , Building Materials , Structural Mechanics
Reliability-based bond design for GFRP-reinforced concrete
| Online Contents | 2011
Reliability-based bond design for GFRP-reinforced concrete
| British Library Online Contents | 2011
Reliability-based bond design for GFRP-reinforced concrete
| Online Contents | 2011