Bond Anchorage of Pretensioned FRP Tendon at Force Release

Nanni, Antonio; Tanigaki, Masaharu; Hasuo, Koichi

doi:10.1061/(asce)0733-9445(1992)118:10(2837)

Cited by 21 publications

(16 citation statements)

References 3 publications

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“…Do-Young Moon, 1) Jang-Ho Kim, 1) Gyuseon Kim, 2) Man-Geun Yun, 3) and Goangseup Zi 1) * Fig. 1 The lay-out of the test specimen (mm) (1) …”

Section: Investigation Of Stress Changes In Concrete and Strands Accomentioning

confidence: 99%

Investigation of Stress Changes in Concrete and Strands according to Cutting Order of the Strands in Pre-tensioned Concrete Slab

Moon¹,

Kim²,

Kim³

et al. 2009

Journal of the Korea Concrete Institute

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This study focuses on the effect of the cutting order of prestressing strands on the strain change in the strands and on the state of stress of concrete, experimentally and numerically. In the experiment, strain of strands and of transversal reinforcement were measured for three different cutting orders during detensioning process by using flame-cutting procedure. The experimental results were compared with those obtained from the FE analysis. As a results of the experiment, it is confirmed that the cutting order of prestressing strands affected on the strain of strands as well as of transversal reinforcement. The FE analysis gave similar results to those obtained from the experiment. Therefore, the cutting order should be chosen appropriately to when the strands get detensioned.

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“…Do-Young Moon, 1) Jang-Ho Kim, 1) Gyuseon Kim, 2) Man-Geun Yun, 3) and Goangseup Zi 1) * Fig. 1 The lay-out of the test specimen (mm) (1) …”

Section: Investigation Of Stress Changes In Concrete and Strands Accomentioning

confidence: 99%

Investigation of Stress Changes in Concrete and Strands according to Cutting Order of the Strands in Pre-tensioned Concrete Slab

Moon¹,

Kim²,

Kim³

et al. 2009

Journal of the Korea Concrete Institute

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“…Work by others has investigated ways of mitigating the possibility of this type of failure. 14,17 Additional factors which influence bond There are several additional factors which must be considered when evaluating the bond characteristics of FRP tendons. In particular, the influence of temperature variations on the bond behaviour is of importance since the transverse coefficient of thermal expansion (CTE) of FRP tends to be much higher than the longitudinal CTE.…”

Section: Bond In the Transfer Zonementioning

confidence: 99%

“…9 Hence, the coefficient of friction at the tendon±concrete interface, the transverse elastic modulus of the rod and the Poisson's ratio of the FRP are all likely to be influential in determining the frictional bond capacity. 14 …”

mentioning

confidence: 99%

Transfer bond stresses generated between FRP tendons and concrete

Lees

Burgoyne

1999

Magazine of Concrete Research

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There is a growing interest in the use of new materials in construction. Materials such as fibre-reinforced plastics (FRPs) are lightweight, strong, and, for the most part, non-corrodible. Hence, the use of FRPs as prestressing tendons for concrete represents a viable, durable alternative to conventional practice using prestressing steel. This paper addresses the nature of the bond between an FRP tendon and concrete in the transfer zone of a pretensioned concrete beam. In particular, two different types of aramid fibre-reinforced plastics (AFRPs) are considered. In the experimental investigation, the tendon pull-in behaviour during detensioning of a number of small-scale (100 3 200 3 2800 mm) pretensioned concrete beams was monitored. These results were then used to make inferences about the bond stress distribution through the transfer zone. Both a constant and a non-linear relationship between the bond shear stress and the tendon slip were considered and the transfer behaviour of the two types of AFRP and steel were compared. It was found that by assuming a non-uniform bond stress distribution some interesting results about the distinctly different natures of the bond behaviour of the three materials were obtained.

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“…Another achievement in structural concrete is the development of reinforcement made of fiber reinforced polymer (FRP). The bond behavior to concrete, the structural performance and applications in structural members have demonstrated the positive effects of CFRP. FRP reinforcement is either applied as bar, strand, plate or mesh material.…”

Section: Introductionmentioning

confidence: 99%

“…Another achievement in structural concrete is the development of reinforcement made of fiber reinforced polymer (FRP). The bond behavior to concrete, [18][19][20][21][22][23][24][25] the structural performance and applications in structural members [26][27][28] have demonstrated the positive effects of Discussion on this paper must be submitted within two months of the print publication. The discussion will then be published in print, along with the authors' closure, if any, approximately nine months after the print publication.…”

Section: Introductionmentioning

confidence: 99%

Sandwich panels with folded plate and doubly curved UHPFRC facings

Stark

Claßen

Knorrek

et al. 2018

Structural Concrete

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Sandwich‐structured composites represent an efficient method to establish building envelopes which concurrently satisfy several demands. Besides low self‐weight with high load‐bearing capacity, sandwich panels provide sufficient physical properties, such as heat and sound insulation. In general, sandwich panels for applications in building industry are made of flat or thin profiled metal sheets or thick concrete facings. However, standard elements are limited to short spans. In contrast, spatially shaped concrete structures with folded plate or curved geometry provide high stiffness and load‐carrying capacity even for thin elements. The application of folded plate and curved concrete structures to sandwich panels combines the advantages of both construction methods. To realize thin facings in various shapes, high performance cementitious composites are advantageous. Ultra‐high performance fiber reinforced concrete (UHPFRC) provides high compressive and tensile strengths with ductile material behavior. The application of non‐corrosive reinforcement, for example, carbon fiber reinforced polymer (CFRP), allows for filigree concrete elements with a thin concrete cover to only fulfill bond requirements. For sandwich panels with folded plate or curved facings, new production methods are necessary to account for cross‐sections in various shapes. This paper introduces the basic ideas of non‐planar concrete sandwich elements for long‐span roof structures and the developed production methods.

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Bond Anchorage of Pretensioned FRP Tendon at Force Release

Cited by 21 publications

References 3 publications

Investigation of Stress Changes in Concrete and Strands according to Cutting Order of the Strands in Pre-tensioned Concrete Slab

Investigation of Stress Changes in Concrete and Strands according to Cutting Order of the Strands in Pre-tensioned Concrete Slab

Transfer bond stresses generated between FRP tendons and concrete

Sandwich panels with folded plate and doubly curved UHPFRC facings

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