Abstract
This paper investigates the manufacturing technology and anchoring effectiveness of a proposed novel wedge anchor for multitendon fiber-reinforced polymer (FRP) cables. Manufacturing of the FRP cable used 19 FRP tendons with a diameter of 4 mm, and its anchor system was first studied by addressing the reliable bonding between each tendon and the realization of the variable elastic modulus of the load-transfer component (LTC) in the anchor zone. The experimental demonstration included evaluating the tensile properties of the FRP cable, the strain distribution in the anchor zone, and the stress-strain relationship of the cable. The anchor effect was evaluated through a comparison of strain distributions among the finite-element simulation and experimental results. Furthermore, the anchor efficiency of the tested cables was evaluated. The results indicate that the winding of fiber roving around each tendon at the anchor zone benefits the integration of the tendons, and the variable elastic modulus of the LTC can be realized through the winding fiber roving with variable angle inclinations and the assistance of compression molding technology. The strain distribution in the anchor zone demonstrates the realization of the variable modulus of the LTC, which benefits smoother and longer shear-stress transfer along the longitudinal direction of the anchor zone. The high anchor efficiency of the tested FRP cable demonstrates that the proposed anchor obtains the potential tensile strength of each tendon without any reduction, thus resulting in a high-strength cable.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The authors gratefully acknowledge the financial support provided by the National Key Basic Research Program of China (973 Program, No. 2012CB026200), the National Science Foundation of China (Nos. 51108074 and 51378109). The authors also acknowledge Jiangsu GMV Co., Ltd. for providing FRP tendons.
References
ACI (American Concrete Institute). (2004a). “Guide test methods for fiber-reinforced polymers (FRPs) for reinforcing or strengthening concrete structures.”, Farmington Hills, MI.
ACI (American Concrete Institute). (2004b). “Prestressing concrete structures with FRP tendons.”, Farmington Hills, MI.
Ali, N., Wang, X., and Wu, Z. S. (2014). “Integrated performance of FRP tendons with fiber hybridization.” J. Compos. Constr., A4013007.
GB/T14370. (2007). “Anchorage, grip and coupler for prestressing tendons.” China National Standardization Management Committee, China Standards Press, Beijing, China.
Ho, R. (2006). Handbook of univariate and multivariate data analysis and interpretation with SPSS, 1st Ed., Chapman & Hall/CRC, Taylor & Francis Group, Boca Raton, FL.
Klein, P. O., Meier, H., and Meier, U. (2000). “Anchoring fixture for carbon fibre composite wires.”, European Patent Office.
Meier, U., and Farshad, M. (1996). “Connecting high-performance carbon-fibre-reinforced polymer cables of suspension and cable-stayed bridges through the use of gradient materials.” J. Comput.-Aided Mater. Des., 3(1–3), 379–384.
Post-Tensioning Institute. (1997). Post-tensioning manual, 5th Ed., Phoenix, AZ.
Ribeiro, S. E. C., and Diniz, S. M. C. (2013). “Reliability-based design recommendations for FRP-reinforced concrete beams.” Eng. Struct., 52, 273–283.
Schmidt, J. W., Bennitz, A., Täljsten, B., Goltermann, P., and Pedersen, H. (2012). “Mechanical anchorage of FRP tendons—A literature review.” Constr. Build. Mater., 32, 110–121.
Sim, J., Park, C., and Moon, D. Y. (2005). “Characteristics of basalt fiber as a strengthening material for concrete structures.” Compos. Part B: Eng., 36(6–7), 504–512.
Wang, X., Shi, J. Z., Liu, J. X., Yang, L., and Wu, Z. S. (2014a). “Creep behavior of basalt fiber reinforced polymer tendons for prestressing application.” J. Mater. Des., 59, 558–564.
Wang, X., and Wu, Z. S. (2010). “Evaluation of FRP and hybrid FRP cables for super long-span cable-stayed bridges.” Compos. Struct., 92(10), 2582–2590.
Wang, X., Wu, Z. S., Wu, G., Zhu, H., and Zen, F. (2013). “Enhancement of basalt FRP by hybridization for long-span cable-stayed bridge.” Compos. Part B: Eng., 44(1), 184–192.
Wang, X., Xu, P., Wu, Z., and Shi, J. (2014b). “A novel anchor method for multi-tendon FRP cable: Concept and FE study.” Compos. Struct.
Wu, Z. S., Wang, X., and Wu, G. (2012). “Advancement of structural safety and sustainability with basalt fiber reinforced polymers.” Proc., 6th Int. Conf. on FRP Composites in Civil Engineering (CICE2012), Sapienza Univ. of Rome, Rome.
Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 19 • Issue 6 • December 2015
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Aug 27, 2014
Accepted: Dec 23, 2014
Published online: Feb 20, 2015
Discussion open until: Jul 20, 2015
Published in print: Dec 1, 2015
ASCE Technical Topics:
- Anchors
- Business management
- Cables
- Elastic analysis
- Engineering fundamentals
- Engineering materials (by type)
- Equipment and machinery
- Fiber reinforced polymer
- Industries
- Manufacturing
- Material mechanics
- Materials engineering
- Organizations
- Polymer
- Practice and Profession
- Strain
- Structural analysis
- Structural engineering
- Structural members
- Structural systems
- Synthetic materials
- Tendons
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.