Abstract
An experimental investigation was conducted to determine the transfer length, development length, and flexural behavior of fiber-reinforced polymer (FRP) tendons in prestressed concrete beams. Three types of nominally 5/16 in. (8 mm) diameter FRP tendons were included in the study: Carbon Leadline, Aramid Technora, and a carbon fiber reference material. Thirty beams were pretensioned using a single FRP tendon. In addition, twelve control beams were pretensioned with a seven-wire steel strand (ST). The transfer length for FRP tendons was reasonably well predicted by the ACI design equation, with the modification in AASHTO providing for a minimum transfer length. The ACI equation predicts the development length very conservatively provided the tendon rupture stress is used in place of the tendon stress at nominal capacity. Therefore, it is proposed to modify the ACI equation to account for the larger bond stress developed by the FRP tendons.
| Original language | English |
|---|---|
| Pages (from-to) | 84-95 |
| Number of pages | 12 |
| Journal | PCI Journal |
| Volume | 45 |
| Issue number | 2 |
| State | Published - Mar 1 2000 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Building and Construction
Cite this
Transfer and development lengths of FRP prestressing tendons. / Lu, Zhen; Boothby, Thomas E.; Bakis, Charles E.; Nanni, Antonio.
In: PCI Journal, Vol. 45, No. 2, 01.03.2000, p. 84-95.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Transfer and development lengths of FRP prestressing tendons
AU - Lu, Zhen
AU - Boothby, Thomas E.
AU - Bakis, Charles E.
AU - Nanni, Antonio
PY - 2000/3/1
Y1 - 2000/3/1
N2 - An experimental investigation was conducted to determine the transfer length, development length, and flexural behavior of fiber-reinforced polymer (FRP) tendons in prestressed concrete beams. Three types of nominally 5/16 in. (8 mm) diameter FRP tendons were included in the study: Carbon Leadline, Aramid Technora, and a carbon fiber reference material. Thirty beams were pretensioned using a single FRP tendon. In addition, twelve control beams were pretensioned with a seven-wire steel strand (ST). The transfer length for FRP tendons was reasonably well predicted by the ACI design equation, with the modification in AASHTO providing for a minimum transfer length. The ACI equation predicts the development length very conservatively provided the tendon rupture stress is used in place of the tendon stress at nominal capacity. Therefore, it is proposed to modify the ACI equation to account for the larger bond stress developed by the FRP tendons.
AB - An experimental investigation was conducted to determine the transfer length, development length, and flexural behavior of fiber-reinforced polymer (FRP) tendons in prestressed concrete beams. Three types of nominally 5/16 in. (8 mm) diameter FRP tendons were included in the study: Carbon Leadline, Aramid Technora, and a carbon fiber reference material. Thirty beams were pretensioned using a single FRP tendon. In addition, twelve control beams were pretensioned with a seven-wire steel strand (ST). The transfer length for FRP tendons was reasonably well predicted by the ACI design equation, with the modification in AASHTO providing for a minimum transfer length. The ACI equation predicts the development length very conservatively provided the tendon rupture stress is used in place of the tendon stress at nominal capacity. Therefore, it is proposed to modify the ACI equation to account for the larger bond stress developed by the FRP tendons.
UR - http://www.scopus.com/inward/record.url?scp=0034149211&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034149211&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0034149211
VL - 45
SP - 84
EP - 95
JO - Journal of the Prestressed Concrete Institute
JF - Journal of the Prestressed Concrete Institute
SN - 0887-9672
IS - 2
ER -