Compressive Behavior of Concrete Confined by Mechanism-Based Fiber Composite Bistable Structure
Publication: Journal of Materials in Civil Engineering
Volume 23, Issue 12
Abstract
The application of fiber-reinforced polymer (FRP) composites in civil engineering has advanced drastically in recent years, especially in the retrofit of concrete bridge columns. However, composite’s typical nonductile behavior and low-energy absorption are some of the concerns that have yet to be fully addressed. The objective of this research is to investigate a new mechanism-based bistable composite structure as the wrapping system for concrete columns to improve the energy absorption and damage tolerance. The bistable structure consists of energy-absorbing main links (primary load carrier) and waiting links (secondary load carrier to be activated after main link fails). A series of uniaxial compression tests on cylindrical concrete members wrapped with hybrid carbon-glass FRP bistable structure were conducted to demonstrate the concept and study the effect caused by link geometry. The results showed that a controlled failure with signs of failure (warning) was achieved in the system and both the ductility and energy absorption were enhanced. The effectiveness of the confinement depended on the number of links and the energy absorption relied on the size of the links.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
This research is partially funded by the Hellman Foundation Board (2008-2009 UC Davis Hellman Fellows). Their financial support is gratefully acknowledged.
References
Abela, C., and Attard, T. (2011). “Analytical models and guidelines for the ductility enhancement of circular reinforced concrete single-column bents using fiber-reinforced polymers.” J. Bridge Eng., 16(1), 171–176.
ACI 440.2R-08. (2008). “Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures.” American Concrete Institute, Farmington Hills, MI.
Anggawidjaja, D., Ueda, T., Dai, J., and Nakai, H. (2006). “Deformation capacity of RC piers wrapped by new fiber-reinforced polymer with large fracture strain.” Cem. Concr. Compos., 28(10), 914–927.
ANSYS Inc. (2005). Computational Dynamics North America, Ltd., Version 10.0. 〈www.ansys.com〉 (Mar. 2010).
ASTM. (2005a). “Standard test method for compressive strength of cylindrical concrete specimens.” C39/C39M, ASTM International, West Conshohocken, PA.
ASTM. (2005b). “Standard test method for tensile properties of polymer matrix composite materials.” D3039/D3039M, ASTM International, West Conshohocken, PA.
Bank, L. (2006). Composites for construction—Structural design with FRP materials, Wiley, Hoboken, NJ.
Cherkaev, A., and Slepyan, L. (1995). “Waiting element structures and stability under extension.” Int. J. Damage Mech., 4(1), 58–82.
CSA S806-02. (2002). “Design and construction of building components with fibre-reinforced polymers.” Canadian Standards Association, Toronto.
Fardis, M. N., and Khalili, H. (1981). “Concrete encased in fiberglass-reinforced plastic.” ACI J., 78(6), 440–446.
JSCE. (2001). “Recommendations for upgrading of concrete structures with use of continuous fiber sheets.” Concrete Engineering Series, 41, Japan Society of Civil Engineers, Tokyo.
Karantzikis, M., Papanicolaou, C. G., Antonopoulos, C. P., and Triantafillou, T. C. (2005). “Experimental investigation of nonconventional confinement for concrete using FRP.” J. Compos. Constr., 9(6), 480–487.
Lam, L., Teng, J. G., Cheung, C. H., and Xiao, Y. (2006). “FRP-confined concrete under axial cyclic compression.” Cem. Concr. Compos., 28(10), 949–958.
Lee, C.-S., and Hegemier, G. A. (2009). “Model of FRP-confined concrete cylinders in axial compression.” J. Compos. Constr., 13(5), 442–454.
Matthys, S., and Taerwe, L. (2006). “Evaluation of ductility requirements in current design guidelines for FRP strengthening.” Cem. Concr. Compos., 28(10), 845–856.
Nanni, A., and Bradford, N. M. (1995). “FRP jacketed concrete under uniaxial compression.” Construct. Build. Mater., 9(2), 115–124.
Rocca, S., Galati, N., and Nanni, A. (2008). “Review of design guidelines for FRP confinement of reinforced concrete columns of noncircular cross sections.” J. Compos. Constr., 12(1), 80–92.
Saadatmanesh, H., Ehsani, M. R., and Li, M. W. (1994). “Strength and ductility of concrete columns externally reinforced with fiber composite straps.” ACI Struct. J., 91(4), 434–447.
Samaan, M., Mirmiran, A., and Shahawy, M. (1998). “Model of concrete confined by fiber composites.” J. Struct. Eng., 124(9), 1025–1031.
Spoelstra, M., and Monti, G. (1999). “FRP-confined concrete model.” J. Compos. Constr., 3(3), 143–150.
Swanson, S. R. (1997). Introduction to design and analysis with advanced composite materials, Prentice-Hall, Berlin.
Teng, J. G., and Lam, L. (2004). “Behavior and modeling of fiber reinforced polymer-confined concrete.” J. Struct. Eng., 130(11), 1713–1723.
Whitman, Z., and La Saponara, V. (2007a). “Bistable structures for energy absorption. I. Metallic structures under tension.” J. Mech. Mater. Struct., 2(2), 347–358.
Whitman, Z., and La Saponara, V. (2007b). “Bistable structures for energy absorption. II. Composite structures under tension.” J. Mech. Mater. Struct., 2(2), 359–376.
Winklemann, C., Kim, S., and La Saponara, V. (2010). “Design and development of hybrid composite bistable structures for energy absorption under quasi-static tensile loading.” Compos. Struct., 93(1), 171–178.
Xiao, Y., and Wu, H. (2000). “Compressive behavior of concrete confined by carbon fiber composite jackets.” J. Mater. Civ. Eng., 12(2), 139–146.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 23 • Issue 12 • December 2011
Pages: 1755 - 1759
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Mar 9, 2010
Accepted: May 4, 2011
Published online: May 6, 2011
Published in print: Dec 1, 2011
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.