Development of the Nonlinear Bond Stress–Slip Model of Fiber Reinforced Plastics Sheet–Concrete Interfaces with a Simple Method
Publication: Journal of Composites for Construction
Volume 9, Issue 1
Abstract
A new analytical method for defining the nonlinear bond stress–slip models of fiber reinforced plastics (FRP) sheet–concrete interfaces through pullout bond test is proposed. With this method, it is not necessary to attach many strain gauges on the FRP sheets for obtaining the strain distributions in FRP as well as the local bond stresses and slips. Instead, the local interfacial bond stress-slip models can be simply derived from the relationships between the pullout forces and loaded end slips. Based on a series of pullout tests, the bond stress–slip models of FRP sheet–concrete interfaces, in which different FRP stiffness, FRP materials (carbon FRP, aramid FRP, and glass FRP), and adhesives are used, have been derived. Only two parameters, the interfacial fracture energy and interfacial ductility index, which can take into account the effects of all interfacial components, are necessary in these models. Comparisons between analytical results and experimental ones show good accordance, indicating the reliability of the proposed method and the proposed bond stress–slip models.
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Acknowledgments
The writers would like to express their sincere thanks to Makoto Saito and Akira Kobayashi of Nippon Steel Composite Co. Ltd. for their kind offering of experimental materials.
References
Bizindavyi, L., and Neale, K. W. (1999). “Transfer length and bond strengths for composites bonded to concrete.” J. Compos. Constr. 3(4), 153–160.
Brosens, K., and Gemert, D. Van. (1997). “Anchorage stresses between concrete and carbon fiber reinforced laminates.” Non-Metallic (FRP) Reinforcement for Concrete Structures, Proc., 3rd Int. Symp., Vol. 1, 271–278.
Brosens, K., and Gemert, D. Van. (1999). “Anchorage design for externally bonded carbon fiber reinforced polymer laminates.” ACI, SP 188-56, 635–641.
Chajes, M. J., Finch, W. W., Januszka, T. F., and Thomson, T. A. (1996). “Bond and force transfer of composite material plates bonded to concrete.” ACI Struct. J. 93(2), 208–217.
Chen, J. F., and Teng, J. G. (2001). “Anchorage strength models for FRP and steel plates bonded to concrete.” J. Struct. Eng. 127(7), 784–791.
Dai, J. G., Sato, Y., and Ueda, T. (2002). “Improving the load transfer and effective bond length for FRP composites bonded to concrete.” Proc., Japan Concrete Institute, Vol. 24, 1423–1428.
Dai, J. G., and Ueda, T. (2003). “Local bond stress slip relations for FRP composites-concrete interfaces.” Proc., FRPRCS-6, K. H. Tan, ed., Vol. l, 143–152.
Fukuzawa, K., Numao, T., Wu, Z., Yoshizawa, H., and Mitsui, M. (1997). “Critical strain energy release rate of interface debonding between carbon fiber sheet and mortar.” Non-Metallic (FRP) Reinforcement for Concrete Structures, Proc., 3rd Int. Symp., Vol. 1, 295–301.
Horiguchi, T. (1997). “Effect of test methods and quality of concrete on bond strength of CFRP sheet.” Non-Metallic (FRP) Reinforcement for Concrete Structures, Proc., Int. Symp., Vol. 1, 265–270.
Japan Concrete Insritute (JCI) TC 952 on Continuous Fiber Reinforced Concrete. (1998). Technical Rep. on Continuous Fiber Reinforced Concrete, Tokyo.
JIS K7113. (1995). “Testing Method for Tensile Properties of Plastics.”
Karbhari, V. M., and Engineer, M. (1996). “Investigation of bond between concrete and composites: Use of a peeling test.” J. Reinf. Plast. Compos., 15, 208–227.
Lee, Y. J., Boothby, T. E., Bakis, C. E., and Nanni, A. (1999). “Slip modulus of FRP sheets bonded to concrete.” J. Compos. Constr. 3(4), 161–167.
Leung, C. K. Y. (2001). “Delamination failure in concrete beams retrofitted with a bonded plate.” J. Mater. Civ. Eng. 13(2), 106–113.
Lorenzis, L. De., Miller, B., and Nanni, A. (2001). “Bond of fiber-reinforced polymer laminates to concrete.” ACI Mater. J., 98(3), 256–264.
Maeda, T., Asano, Y., Sato, Y., Ueda, T., and Kakuta, Y. (1997). “A study on bond mechanism of carbon fiber sheet.” Non-Metallic (FRP) Reinforcement for Concrete Structures, Proc., 3rd Int. Symp., Vol. 1, 279–286.
Miller, B., and Nanni, A. (1999). “Bond between carbon fiber-reinforced polymer sheets and concrete.” Proc., ASCE 5th Materials Congress, L. C. Band, ed., Cincinnati, May 10–12, 240–247.
Mitsui, M., Fukuzawa, K., Numao, T., and Fuda, I. (2000). “Relations between surface roughness indexes and bond strength between CFRP sheets and concrete.” J. Soc. Mater. Sci. Jpn., 49(6), 685–691 (in Japanese).
Nakaba, K., Kanakubo, T., Furuta, T., and Yoshizawa, H. (2001). “Bond behavior between fiber-reinforced polymer laminates and concrete.” ACI Struct. J., 98(3), 359–167.
Nishida, H., Simomura, T., Kamiharako, A., and Maruyama, K. (1999). “Bond behaviors between the FRP sheets and concrete.” Proceedings of Japan Concrete Institute, 21(3), 1507–1511 (in Japanese).
Sato, Y., Asano, Y., and Ueda, T. (2000). “Fundamental study on bond mechanism of carbon fiber sheet.” Concr. Library Int., JSCE, No. 37, June 2001, 97–115.
Sato, Y. (Yuichi), Kimura, K., and Kobatake, Y. (1997). “Bond behaviors between CFRP sheet and concrete.” J. Struct. Constr. Eng., AIJ, No. 500, 75–82 (in Japanese).
Shima, H., Chou, L., and Okamura, H. (1987). “Bond stress-slip-strain relationship of deformed bars embedded in massive concrete.” Concr. Library Int., JSCE, No. 10, 79–94.
Täljsten, B. (1997). “Defining anchor lengths of steel and CFRP plates bonded to concrete.” Int. J. Adhes. Adhes., 17(4), 319–327.
Tripi, J. M., Bakis, C. E., Boothby, T. E., and Nanni, A. (2000). “Deformation in concrete with external CFRP sheet reinforcement.” J. Compos. Constr., 4(2), 85–94.
Ueda, T., Sato, Y., and Asano, Y. (1999). “Experimental study on bond strength of continuous carbon fiber sheet.” ACI, SP 188-37, 407–413.
Wu, Z., and Yin, J. (2002). “Numerical analysis on interfacial fracture mechanism of externally FRP-strengthened structural members.” Journal of Materials, Concrete Structures and Pavements, JSCE, 704(55), 257–270.
Yin, J., and Wu, Z. (1999). “Interface crack propagation in fiber reinforced polymer-strengthened concrete structures using nonlinear fracture mechanics.” ACI, SP 188-87, 1035–1047.
Yoshizawa, H., Wu, Z., Yuan, H., and Kanakubo, T. (2000). “Study on FRP-concrete interface bond performance.” Trans. Jpn. Soc. Civ. Eng., 662(49), 105–119.
Yuan, H., Wu, Z., and Yoshizawa, H. (2001). “Theoretical solutions on interfacial stress transfer of externally bonded steel/composite plates.” Journal of Structural Mechanics and Earthquake Engineering, JSCE, 18(1), 27–39.
Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 9 • Issue 1 • February 2005
Pages: 52 - 62
Copyright
© 2005 ASCE.
History
Received: Jun 18, 2003
Accepted: Feb 23, 2004
Published online: Feb 1, 2005
Published in print: Feb 2005
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