Seismic Response Analysis of Lightly Reinforced Concrete Block Masonry Shear Walls Based on Shake Table Tests
Publication: Journal of Structural Engineering
Volume 140, Issue 9
Abstract
This paper presents detailed analyses of experimental shake table test results with the goal of providing a better understanding of the seismic performance of lightly reinforced fully grouted masonry shear walls. The paper first gives a brief summary of the experimental program followed by detailed analyses of the inelastic behavior characteristics of the walls. This includes quantifying the walls’ displacement ductility levels, extent of plastic hinge zones, and equivalent plastic hinge lengths based on the experimental results. Separation of the various energy components of the system, including those of the shake table, the walls, and the external mass support system, based on the experimental results, is also carried out. Utilizing the evaluated energy components, the characteristics of the system, including the change of input energy levels with time and the contributions of the different energy dissipation mechanisms (e.g., hysteretic, viscous damping, and coulomb friction damping), are quantified. In general, the results from this study demonstrate that the displacement ductility capacity of the reinforced masonry (RM) walls and their capability to dissipate energy through plastic hinging are higher than what is currently recognized by the National Building Code of Canada. In addition, the effective dynamic properties of the walls including the effective secant stiffness, period, and equivalent viscous damping are quantified, and their variations at different response levels are characterized. A single-degree-of-freedom (SDOF) substitute structure model, based on the aforementioned properties, is subsequently used to predict the experimental base shear demands of the walls. The study forms a part of the ongoing efforts to quantify the seismic performance parameters of RM wall systems to facilitate their adoption in the next generation of seismic codes in North America.
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Acknowledgments
The financial support for this project was provided by the McMaster University Centre for Effective Design of Structures (CEDS) funded through the Ontario Research and Development Challenge Fund (ORDCF) and an Early Researcher Award (ERA) grant; both are programs of the Ministry of Research and Innovation. Support was also provided through the Natural Sciences and Engineering Research Council (NSERC) of Canada. Provision of mason time by the Ontario Masonry Contractors Association (OMCA) and Canada Masonry Design Centre is appreciated. The provision of the scaled blocks through a grant from the Canadian Concrete Masonry Producers Association (CCMPA) is gratefully acknowledged.
References
Abrams, D. P., and Paulson, T. J. (1991). “Modeling earthquake response of concrete masonry building structures.” ACI Struct. J., 88(4), 475–485.
Applied Technology Council (ATC). (2006). Next-generation performance-based seismic design guidelines: Program plan for new and existing buildings (FEMA-445), Applied Technology Council, Federal Emergency Management Agency, Washington, DC.
ASCE. (2010). Minimum design loads for buildings and other structures, Structural Engineering Institute, Reston, VA.
ASTM. (2009). Standard specification for deformed and plain carbon-steel bars for concrete reinforcement (A615/A615M-09b Ed.), ASTM International, West Conshohocken, PA.
Banting, B. R., and El-Dakhakhni, W. W. (2012). “Force-and displacement-based seismic performance parameters for reinforced masonry structural walls with boundary elements.” J. Struct. Eng., 1477–1491.
Calvi, G. M., and Kingsley, G. R. (1995). “Displacement-based seismic design of multi-degree-of-freedom bridge structures.” Earthquake Eng. Struct. Dyn., 24(9), 1247–1266.
Canadian Standard Association (CSA). (2004). Design of masonry structures, CSA S304.1, Mississauga, ON.
Carrillo, J., and Alcocer, S. (2011). “Improved external device for a mass-carrying sliding system for shaking table testing.” J. Earthquake Eng. Struct. Dyn., 40(4), 393–411.
Chopra, A. K. (2001). Dynamics of structures: Theory and applications to earthquake engineering, Vol. 2, Prentice Hall, Upper Saddle River, NJ.
Christopoulos, C., and Filiatrault, A. (2006). Principles of supplemental damping and base isolation, Istituto Universitario di Studi Superiori di Pavia (IUSS), Milan, Italy.
Gulkan, P., and Sozen, M. A. (1974). “Inelastic responses of reinforced concrete structure to earthquake motions.” ACI J. Proc., 71(12), 604–610.
Hamburger, R., Rojahn, C., Moehle, J., Bachman, R., Comartin, C., and Whitakker, A. (2004). “ATC-58 Project: Development of next-generation performance-based earthquake engineering design criteria for buildings.” 13th World Conf. on Earthquake Engineering, Paper No. 1819, Canadian Association for Earthquake Engineering.
Harris, H. G., and Sabnis, G. (1999). Structural modeling and experimental techniques, 2nd Ed., CRC, Boca Raton, FL.
Jacobsen, L. S. (1960). “Damping in composite structures.” Proc., 2nd World Conf. on Earthquake Engineering, Vol. 2, Science Council of Japan, Japan, 1029–1044.
Kasparik, T., Tait, M., and El-Dakhakhni, W. (2014). “Seismic performance assessment of partially-grouted nominally-reinforced concrete masonry structural walls using shake table testing.” J. Perform. Constr. Facil., 216–227.
Lestuzzi, P., and Bachmann, H. (2007). “Displacement ductility and energy assessment from shaking table tests on RC structural walls.” Eng. Struct., 29(8), 1708–1721.
Mojiri, S. (2013). “Shake table seismic performance assessment and fragility analysis of lightly reinforced concrete block shear walls.” M.A.Sc. thesis, Dept. of Civil Engineering, McMaster Univ., Hamilton, ON, Canada.
National Institute of Standards, and Technology (NIST). (2010). “Evaluation of the P-695 methodology for quantification of building seismic performance factors.”, NIST, Gaithersburg, MD.
National Research Council of Canada (NRCC). (2010). “National building code of Canada (NBCC).” Institute for Research in Construction, Ottawa, Canada.
Noland, J. L. (1987). “A review of the U.S. coordinated program for masonry building research.” Proc., 4th North American Masonry Conf., Masonry Society, Univ. of California, Los Angeles, CA, pp. 38-1.
Pacific Earthquake Engineering Research (PEER) Center. (2011). NGA database, 〈http://peer.berkeley.edu/nga/〉 (Sep. 2011).
Paulay, T., and Priestley, M. J. N. (1992). Seismic design of reinforced concrete and masonry buildings, Wiley, New York, 139–142.
Priestley, M. J. N., Calvi, G. M., and Kowalsky, M. J. (2007). Displacement-based seismic design of structures, Istituto Universitario di Studi Superiori di Pavia (IUSS), Pavia, Italy.
Seible, F., Priestley, M., Kingsley, G., and Kürkchübasche, A. (1994). “Seismic response of full-scale five-storey reinforced-masonry building.” J. Struct. Eng., 925–946.
Shedid, M., and El-Dakhakhni, W. (2013). “Plastic hinge model and displacement-based seismic design parameter quantifications for reinforced concrete block structural walls.” J. Struct. Eng., in press.
Shedid, M. T., El-Dakhakhni, W. W., and Drysdale, R. G. (2010a). “Seismic performance parameters for reinforced concrete-block shear wall construction.” J. Perform. Constr. Facil., 4–18.
Shedid, M. T., El-Dakhakhni, W. W., and Drysdale, R. G. (2010b). “Alternate strategies to enhance the seismic performance of reinforced concrete-block shear wall systems.” J. Struct. Eng., 676–689.
Shibata, A., and Sozen, M. A. (1976). “Substitute-structure method for seismic design in R/C.” J. Struct. Div., 102(1), 1–18.
Shing, P. B., Noland, J. L., Klamerus, E., and Spaeh, H. (1989). “Inelastic behavior of concrete masonry shear walls.” J. Struct. Eng., 2204–2225.
Shing, P. B., Schuller, M., and Hoskere, V. S. (1990). “In-plane resistance of reinforced masonry shear walls.” J. Struct. Eng., 619–640.
Tomaževič, M., and Weiss, P. (1994). “Seismic behavior of plain- and reinforced-masonry buildings.” J. Struct. Eng., 323–338.
Uang, C., and Bertero, V. V. (1990). “Evaluation of seismic energy in structures.” Earthquake Eng. Struct. Dynam., 19(1), 77–90.
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Published In
Journal of Structural Engineering
Volume 140 • Issue 9 • September 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Mar 11, 2013
Accepted: Oct 8, 2013
Published online: Apr 28, 2014
Published in print: Sep 1, 2014
Discussion open until: Sep 28, 2014
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