Development of FRP Reinforcement Guidelines for Prestressed Concrete Structures

Gilstrap, Jeremy; Burke, Chad R.; Dowden, Daniel M.; Dolan, Charles W.

doi:10.1061/(asce)1090-0268(1997)1:4(131)

Cited by 14 publications

(5 citation statements)

References 2 publications

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“…The ends of some CFRP tendons need to set the cohesion of concrete be invalid by plastic tubes. To ensure the safety of the structure, the Japanese specification recommends that the guaranteed design tensile strength of CFRP tendon is setted as the mean tensile strength of a sample of test specimens minus three times the standard deviation, which guaranteed rate is 99.87% [1,2] , no additional material safety factor is considered additionally.…”

Section: Structurementioning

confidence: 99%

Design of Concrete Voided Slab of Highway Bridge Pretensioned with CFRP Tendons

Wang

Shi

Sun

2014

AMM

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The concrete voided slab pretensioned with CFRP tendons is a new type slab for bridge construction. The problems such as the anchorage, loss of prestress, prestressed tendons configuration etc. are discussed, then through the analysis of structure, the characteristics and key points of design methods are put forward. With a 20m span slab as an example, a comparative study is conducted on the concrete voided slab pretensioned with different tendons of CFRP or steel. The analysis shows that the concrete voided slab pretensioned with CFRP tendons is feasible in engineering.

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Section: Structurementioning

confidence: 99%

Design of Concrete Voided Slab of Highway Bridge Pretensioned with CFRP Tendons

Wang

Shi

Sun

2014

AMM

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“…However, due to limited research data on behaviour of FRP PC structures, no unified design code is available. A survey of code development can be found in the article by Giltrap et al (1997).…”

Section: Performance Of Frp Pc Beams Serviceability and Codementioning

confidence: 99%

Fibre reinforced polymer materials for prestressed concrete structures

et al. 2003

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Fibre reinforced polymer (FRP) materials are currently used for concrete structures in areas where corrosion problems are serious. Recent applications of FRP rebars in normal reinforced concrete structures in fact cannot fully utilise the strength of FRP. A more rational use of FRP would be in the area of prestressed concrete (PC) structures. In spite of the superb strength provision of FRP tendons over steel tendons, use of FRP PC members is often questioned by practising design engineers. This is largely due to the brittleness of FRP tendons and lack of ductility in FRP RC structures. Recent research has demonstrated some important findings in promoting the confidence of adopting FRP RC beams. This paper reviews some recent work on the use of FRP in PC structures. Future possible research areas are also highlighted.

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“…Compare design moment capacity and required moment capacity (8) vii. Check for stresses in concrete (9) E c = modulus of elasticity of concrete; and f pbmi = initial effective prestress in the bottom tendons.…”

Section: 5ρ B (Burke and Dolan 12mentioning

confidence: 99%

“…Although early testing on FRP materials to develop suitable design guidelines started in Japan, similar research [7][8] in the United States of America and Europe started in the late 1980s. About 5 years ago, Gilstrap et al 9 presented a comparative evaluation of the previously developed design philosophies. They have referred Canadian, European, and Japanese efforts to codify FRP materials and assess the relative merits of each design approach.…”

Section: Introductionmentioning

confidence: 99%

Design Approach for Carbon Fiber-Reinforced Polymer Prestressed Concrete Bridge Beams

2003

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This paper presents a design approach for carbon fiber-reinforced polymer (CFRP) concrete bridge beams prestressed using bonded pretensioning and unbonded post-tensioning tendons arranged in multiple vertically distributed layers along with non-prestressing CFRP rods. Design equations to determine the flexural capacity and to compute the stresses and strains in concrete and tendons are provided. In addition, based on parabolic stress-strain relation for concrete and linear stress-strain relation for tendons, a computer program was developed to compute the overall response of the beam such as deflections, strains, cracking loads, and post-tensioning forces. The design equations and the accuracy of the nonlinear computer program were validated by comparing the analytical results with experimental results from a full-scale double-T (DT) test beam. The difference in the analytical and experimental values of the ultimate moment capacity of the DT-test beam is negligible, whereas the corresponding difference in the ultimate forces in unbonded externally draped post-tensioning strands is approximately 4.1%. A detailed parametric study was conducted to examine the effect of the reinforcement ratio and the level of prestressing forces on the deflections and ultimate load-carrying capacity of the full-scale DT-beam. It is observed that the reinforcement ratio and the level of prestressing have significant effect on the moment-carrying capacity and ultimate load deflection of the beam. The combination of bonded and unbonded prestressing levels (0.3 to 0.6) can significantly increase the ultimate moment capacity of an over-reinforced beam.

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Development of FRP Reinforcement Guidelines for Prestressed Concrete Structures

Cited by 14 publications

References 2 publications

Design of Concrete Voided Slab of Highway Bridge Pretensioned with CFRP Tendons

Design of Concrete Voided Slab of Highway Bridge Pretensioned with CFRP Tendons

Fibre reinforced polymer materials for prestressed concrete structures

Design Approach for Carbon Fiber-Reinforced Polymer Prestressed Concrete Bridge Beams

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