Abstract
This paper provides an overview of studies on experimental testing and analytical modelling of reinforced concrete (RC) shear walls retrofitted with externally bonded fiber-reinforced polymer sheets (FRP) conducted at Carleton University. The experimental investigations include cyclic lateral load tests on FRP retrofitted RC shear walls in repair and strengthening applications, including those with varying aspect ratios ranging from slender flexural walls to squat walls dominated by brittle shear behaviour. The effectiveness of the FRP retrofit in recovering or enhancing the earthquake resistance of deficient RC structures as well as those that meet modern design standards are investigated. Parallel to the experimental studies, analytical research has also been carried out to develop computer models for predicting the behaviour and performance of FRP retrofitted RC shear walls. These include simplified models suitable for design as well as detailed models that capture the complex interaction and debonding failure mechanisms of the FRP sheets. Ongoing studies combine experience with experimental and analytical modelling and focus on the use of hybrid simulation to accurately capture the system level earthquake response and performance of FRP retrofitted RC shear walls.
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References
ACI 318. (1968). Building code requirements for structural concrete. American Concrete Institute, Detroit, Michigan, USA.
Antoniades, K., Salonikios, T., & Kappos, A. (2003). Cyclic tests on seismically damaged reinforced concrete walls strengthened using fiber-reinforced polymer reinforcement. ACI Structural Journal, 100(4), 510–518.
Cruz-Noguez, C., Lau, D., & Sherwood, E. (2014a). Seismic behaviour of RC shear walls with externally bonded FPR sheets: Analytical studies. Journal of Composites for Construction, 18(5), 1–11.
Cruz-Noguez, C., Lau, D., Sherwood, E., Hiotakis, S., Lombard J., Foo, S., & Cheung, M. (2014). Seismic behaviour of RC shear walls strengthened for in-plane bending using externally bonded FRP sheets. Journal of Composites for Construction, 19(1).
CSA. (1977). Code for the design of concrete structures for buildings, CAN3-A23.3-M77. Canadian Standard Association, Rexdale, Ontario, Canada.
CSA A23.3. (2004). Design of concrete structures. Canadian Standards Association, Rexdale, Ontario, Canada.
Hiotakis, S. (2004). Repair and strengthening of reinforced concrete shear walls for earthquake resistance using externally bonded carbon fibre sheets and a novel anchor system. Master’s thesis, Department of Civil and Environmental Engineering, Carleton University.
Khalil, A., & Ghobarah, A. (2005). Behaviour of rehabilitated structural walls. Journal of Earthquake Engineering, 9(3), 371–391.
Lau, D., & Woods, J. (2017). A concentric tube anchor system for fiber-reinforced polymer retrofit of reinforced concrete structural walls under extreme loads. International Journal of Protective Structures, 9(1), 1–22.
Lu, X., Xie, L., Guan, H., Huang, Y., & Lu, X. (2015). A shear wall element for nonlinear analysis of super-tall buildings using OpenSees. Finite Element Analysis and Design, 98(1), 14–25.
Lombard, J., Lau, D., Humar, J., Foo, S., & Cheung, M. (2000). Seismic strengthening and repair of reinforced concrete shear walls. In Proceedings of the 12th world conference on earthquake engineering, paper 2032.
McKenna, F., Fenves, G., Scott, H., & Jeremic, B. (2000). Open system for earthquake engineering simulation (OpenSees). In Pacific earthquake engineering research center, University of California at Berkeley. http://opensees.berekeley.edu/.
Paterson, J., & Mitchell, D. (2003). Seismic retrofit of shear walls with headed bars and carbon fiber wrap. Journal of Structural Engineering, 129(5), 606–614.
Schellenberg, A., Mahin, S., & Fenves, G. (2009). Software framework for hybrid simulation of large structural systems. In Proceedings of the ASCE structures congress, long beach, California. http://openfresco.berkeley.edu.
Wong, P. S., & Vecchio, F. J. (2002). VecTor2 and FormWorks user’s manual (Publication No. 2002–02). Toronto, ON, Canada: University of Toronto, Department of Civil Engineering.
Woods, J., Lau, D., & Cruz-Noguez, C. (2016). In-plane seismic strengthening of nonductile reinforced concrete shear walls using externally bonded CFRP sheets. Journal of Composites for Construction, 20(6).
Woods, J., Lau, D., Cruz-Noguez, C., & Shaheen, I., Repair of earthquake damaged squat reinforced concrete shear walls using externally bonded CFRP sheets. In Proceedings of the 16th world conference on earthquake engineering, paper 1693.
Acknowledgements
The contributions from current and former graduate researchers on the project are acknowledged. The research team includes former graduate students Stelios Hiotakis, Nicolas Londono and Joshua Lombard. Funding for the research program has been provided by the Canadian Foundation for Innovation, Canadian Seismic Research Network, Natural Sciences and Engineering Research Council Canada and Public Works and Government Services Canada. This support and the FRP materials and technical assistance provided by Fyfe Co LLC, Brighton Engineering Taiwan, and Master Builders Technologies are gratefully acknowledged.
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Lau, D.T., Woods, J.E., Hassan, A., Erochko, J., Cruz-Nuguez, C., Shaheen, I. (2019). Understanding the Seismic Behaviour of FRP Retrofitted RC Shear Walls: Past and Present. In: Hsu, T. (eds) Concrete Structures in Earthquake. Springer, Singapore. https://doi.org/10.1007/978-981-13-3278-4_10
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DOI: https://doi.org/10.1007/978-981-13-3278-4_10
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