Midply Wood Shear Wall System: Performance in Dynamic Testing
Publication: Journal of Structural Engineering
Volume 133, Issue 7
Abstract
The midply shear wall system is a new concept in shear wall design. Test results presented here demonstrate that midply walls have superior survival characteristics under earthquake loading, and have a dynamic load-carrying capacity of more than two and a half times that of comparable standard shear walls. To prevent brittle failure at the end studs due to high-tension forces, steel rods are used at each end of the midply wall in lieu of hold-down connectors. Seismic damage accumulation was identified experimentally for the first time in wood shear walls under repeated earthquake loading. Further understanding of this phenomenon is important for seismic safety evaluation of buildings which experience multiple earthquakes during their service life. This study and the previous work on the static and cyclic performance of midply walls provide design engineers with experimental and conceptual evidence of the suitability of midply walls in wood construction applications where the architecture requires superior shear resistance.
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Acknowledgments
The financial support for the research program by Forintek Canada Corp. industry members, the Science Council of B.C., Natural Resources Canada (Canadian Forest Service), and the provinces of British Columbia, Alberta, Saskatchewan, Quebec, Nova Scotia, New Brunswick, Ontario, Manitoba, and Newfoundland, and Labrador are gratefully acknowledged. The shake table tests were carried out at the Earthquake Facility at the University of British Columbia. The writers thank the staff of Forintek Canada Corp., Western Laboratory in Vancouver, B.C., and the technical staff of the Mechanical Engineering Work Shop at the University of British Columbia for their valuable contributions to this work. Finally, the technical contributions by H. Fraser, P. Symons, W. Deacon, and J. Gardy are acknowledged with thanks.
References
Bruneau, M. (1990). “Preliminary report of structural damage from the Loma Prieta (San Francisco) earthquake of 1989 and pertinence to Canadian structural engineering practice.” Can. J. Civ. Eng., 17(2), 198–208.
California Division of Mines and Geology (CDMG). (2000). “Peer strong motion data base.” ⟨http://peer.berkeley.edu/smcat/data/spc/Landers/JOS090.050⟩ (Dec 25, 2006).
Dolan, J. D. (1989). “The dynamic response of timber shear walls.” Ph.D. thesis, Univ. of British Columbia, Vancouver, Canada.
Dolan, J. D., and White, M. W. (1992). “Design considerations for using adhesives in shear walls.” J. Struct. Eng., 118(12), 3473–3479.
Durham, J., Lam, F., and Prion, H. G. L. (2001). “Seismic resistance of wood shear walls with large OSB panels.” J. Struct. Eng., 127(12), 1460–1466.
Filiatrault, A., Uang, C.-M., and Seible, F. (2000). “Ongoing seismic testing and analysis program in the CUREe-Caltech Woodframe Project in California.” Proc., World Conf. on Timber Engineering 2000, Whistler Resort, B.C., Canada, Paper No. 7.1.4.
Hall, J. F. (2000). “The CUREe-Caltech Woodframe Project in California.” Proc., World Conf. on Timber Engineering 2000, Whistler Resort, B.C., Canada, Paper No. 7.1.1.
Hamburger, R. O., and McCormick, D. L. (1997). “Earthquake performance of modern wood structures: Lessons from 1994 Northridge earthquake.” Earthquake performance and safety of structures, Forest Products Society, Madison, Wis., 77–82.
He, M., Magnusson, H., Lam, F., and Prion, H. G. L. (1999). “Cyclic performance of perforated wood shear walls with oversize OSB panels.” J. Struct. Eng., 125(1), 10–18.
International Organization for Standardization (ISO). (2003). “Timber structures—Joints made with mechanical fasteners—Quasistatic reversed-cyclic test method.” ISO-16670, Geneva, Switzerland.
Lam, F., Prion, H. G. H., and He, M. (1997). “Lateral resistance of wood shear walls with large sheating panels.” J. Struct. Eng., 123(12), 1666–1673.
National Building Code of Canada (NBC). (2005a). User’s guide, NBC 2005 structural commentaries, Part 4 of Division B, Canadian Commission on Building and Fire Codes, National Research Council, Ottawa, Ont., Canada.
National Building Code of Canada (NBC). (2005b). National building code of Canada. Volume 1, Canadian Commission on Building and Fire Codes, National Research Council, Ottawa, Ont., Canada.
Nelson, R. F., Patel, S. T., and Arevalo, R. (2003). “Continuous tie-down systems for wood panel shear walls in multi story structures.” Proc. Structural Engineers Association of California Convention, Squaw Creek, Calif., 1–16.
Pacific Engineering. (2000). “Peer strong motion data base.” ⟨http://peer.berkeley.edu/smcat/data/spc/Kobe/KJM090.050⟩ (Dec 25, 2006).
Pacific Fire Rating Bureau (PFRB). (1971). “San Fernando Earthquake February 9, 1971, Section 1.” San Francisco.
Peterson, J. (1983). “Bibliography on lumber and wood panel diaphragms.” J. Struct. Eng., 109(12), 2838–2852.
Rainer, J. H., and Karacabeyli, E. (1999). “Performance of wood-frame building construction in earthquakes.” Forintek special publication no. SP-40, Forintek Canada Corp., Vancouver, Canada.
van de Lindt, J. W. (2004). “Evolution of wood shear wall testing, modeling, and reliability analysis: Bibliography.” Pract. Period. Struct. Des. Constr., 9(1), 44–53.
Varoglu, E., Karacabeyli, E., Stiemer, S., and Chun, N. (2006). “Midply wood shear wall system: Concept and performance in static and cyclic testing.” J. Struct. Eng., 132(9), 1417–1425.
Yamaguchi, N., Karacabeyli, E., Minowa, C., Kawai, N., Watanabe, K., and Nakamura, I. (2000a). “Seismic performance of nailed wood-frame shear walls.” Proc., World Conf. on Timber Engineering WCTE 2000, Whistler Resort, B.C., Canada, Paper No. 8.1.1.
Yamaguchi, N., Minowa, C., and Miyamura, M. (2000b). “Seismic performance of wooden shear walls on dynamic condition.” Proc., World Conf. on Earthquake Engineering 2000, Vancouver, B.C., Canada, Paper No. 877.6.A.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 133 • Issue 7 • July 2007
Pages: 1035 - 1042
Copyright
© 2007 ASCE.
History
Received: Feb 6, 2006
Accepted: Oct 9, 2006
Published online: Jul 1, 2007
Published in print: Jul 2007
Notes
Note. Associate Editor: J. Daniel Dolan
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