Racking Performance of Tall Unblocked Shear Walls
Publication: Journal of Structural Engineering
Volume 132, Issue 1
Abstract
In this study, full-scale tests were conducted on unblocked shear walls with various sheathing details and reference blocked shear walls. A total of eight shear walls were tested. Monotonic and reversed cyclic displacement schedules were used as loading protocols. Load–displacement response of each test specimen was recorded, from which the initial stiffness, yield point, ultimate load and displacement, and energy dissipation were calculated. The test results were analyzed to study the influence of different configurations on unblocked shear wall strengths. Relative load-carrying capacities between unblocked and blocked shear walls were determined. The results show that the provisions currently in CSA O86-01 for 2.44 m tall shear walls may be conservatively applied to the four wall configurations tested in this study. Data from this study are suitable for verifying structural analysis models that may be used to further refine the adjustment factors.
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Acknowledgments
The financial support for the research project by Forintek Canada Corp. industry members, 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, and Natural Sciences and Engineering Research Council of Canada (NSERC) is gratefully acknowledged. The writers would also like to acknowledge the technical contributions of Forintek Colleagues, H. Fraser and P. Symons.
References
American Society for Testing and Materials (ASTM). (2003). “Standard test methods for cyclic (reversed) load test for shear resistance of walls for buildings.” ASTM E2126, West Conshohocken, Pa.
Applied Technology Council (ATC). (1981). “Guidelines for the design of horizontal wood diaphragms.” Technical Rep. ATC-7, Redwood City, Calif.
Canadian Standards Association (CSA). (1994). “Engineering design in wood (Limit states design).” CSA O86.1-94, Toronto.
Canadian Standards Association (CSA). (2001). “Engineering design in wood.” CSA O86-01, Toronto.
Dolan, J. D. (1989). “The dynamic response of timber shear walls.” PhD thesis, Univ. of British Columbia, Vancouver, B.C., Canada.
Dolan, J. D., and Madsen, B. (1992). “Monotonic and cyclic nail connection tests.” Can. J. Civ. Eng., 19, 97–104.
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.
Folz, B., and Filiatrault, A. (2001). “Cyclic analysis of wood shear walls.” J. Struct. Eng., 127(4), 433–441.
Foschi, R. O. (1977). “Analysis of wood diaphragms and trusses: Part I: Diaphragms.” Can. J. Civ. Eng., 4, 345–352.
Foschi, R. O. (1982). “Load/slip results for nailed connections using waferboard panels (Supplementary report A).” Rep. to the Canadian Waferboard Association, Forintek Canada Corp., Vancouver, B.C., Canada.
Griffiths, D. R. (1984). “Determining the racking resistance of timber framed walls.” Proc., Pacific Timber Engineering Conf., Vol. 1, Auckland, New Zealand, 504–512.
Gupta, A. K., and Kuo, G. P. (1985). “Behavior of wood-framed shear walls.” J. Struct. Eng., 111(8), 1722–1733.
Gutkowski, R. M., and Castillo, A. L. (1988). “Single and double sheathed wood shear wall study.” J. Struct. Eng., 114(6), 1268–1284.
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—Quasi-static reversed-cyclic test method.” ISO 16670, Geneva, Switzerland.
Itani, R. Y., and Cheung, C. K. (1984). “Nonlinear analysis of sheathed wood diaphragms.” J. Struct. Eng., 110(9), 2137–2147.
Johnson, A. C. (1997). “Monotonic and cyclic performance of long shear walls with openings.” Master’s thesis, Virginia Polytechnic Institute and State Univ., Blacksburg, Va.
Kamiya, F. (1986). “Configurations of wood sheathed shear walls and its racking resistance.” Bulletin of the Forestry and Forest Products Research Institute, No. 340, Japan, 169–186.
Karacabeyli, E., and Ceccotti, A. (1996). “Test results on the lateral resistance of nailed shear walls.” Proc., Int. Wood Engineering Conf., Vol. 2, Omnipress, Madison, Wis., 179–186.
Karacabeyli, E., and Ceccotti, A. (1997). “Dynamic analysis of a four-storey wood-frame building.” Proc., Workshop on Dynamic Behavior Modeling of Wood Structures, Building Research Institute, Tsukuba, Japan.
Lam, F., Prion, H. G. L., and He, M. (1997). “Lateral resistance of wood shear walls with large sheathing panels.” J. Struct. Eng., 123(12), 1666–1673.
Leiva-Aravena, L. (1996). “Behavior of timber shear walls subjected to reversed cyclic lateral loading.” Proc., Int. Wood Engineering Conf., Vol. 2, Omnipress, Madison, Wis., 201–206.
McCutcheon, W. J. (1985). “Racking deformations in wood shear walls.” J. Struct. Eng., 111(2), 257–269.
Mohammad, M. A. H., and Smith, I. (1994). “Stiffness of nailed OSB-to-lumber connections.” For. Prod. J., 44(11/12), 37–44.
Monique, C. H., and Shenton, H. W. III (2002). “Modeling the non-linear behavior of wood frame shear walls.” Proc., 15th ASCE Engineering Mechanics Conf., Columbia Univ., New York.
National Lumber Grades Authority (NLGA). (2002). “Standard grading rules for Canadian lumber.” New Westminster, B.C., Canada.
National Research Council of Canada (NRC). (1995). National building code of Canada, Ottawa.
Ni, C., and Chui, Y. H. (1994). “Response of nailed wood joints to dynamic loads.” Proc., Pacific Timber Engineering Conf., Vol. 2, Queensland Univ. of Technology, Queensland, Australia, 9–18,.
Ni, C., and Karacabeyli, E. (2000). “Effect of overturning restraint on performance of shear walls.” Proc., World Conf. on Timber Engineering, Univ. of British Columbia, Vancouver, B.C., Canada, Paper 2.3.1.
Ni, C., Karacabeyli, E., and Ceccotti, A. (1999). “Design of shear walls with openings under lateral and vertical loads.” Proc., Pacific Timber Engineering Conf., Forest Research Institute, Rotorua, New Zealand, 360–367.
Ni, C., Karacabeyli, E., and Ceccotti, A. (2000). “Lateral load capacities of horizontally sheathed unblocked shearwalls.” Proc., Int. Council for Building Research Studies and Documentation, Working Commission W18—Timber Structures, Univ. of Karlsruhe, Karlsruhe, Germany, Paper 33-15-1.
Patton-Mallory, M., Wolfe, R. W., Soltis, L. A., and Gutkowski, R. M. (1985). “Light-frame shear wall length and opening effects.” J. Struct. Eng., 111(10), 2227–2239.
Price, E. W., and Gromala, D. S. (1980). “Racking strength of walls sheathed with structural flakeboards made from Southern Species.” For. Prod. J., 30(12), 19–23.
Salenikovich, A. J. (2000). “Racking performance of light-frame shear walls.” PhD thesis, Virginia Polytechnic Institute and State Univ., Blacksburg, Va.
Shenton, H. W., III, Dinehart, D. W., and Elliott, T. E. (1998). “Stiffness and energy degradation of wood frame shear walls.” Can. J. Civ. Eng., 25, 412–423.
Skaggs, T. (1995). “Summary of OSB sheathed shear wall and small specimen static bending tests—A report to CSA O86.1 Panel Subcommittee.” Rep. No. T95-24, APA—The Engineered Wood Association, Tacoma, Wash.
Stewart, W. G., (1987). “The seismic design of plywood sheathed shearwalls.” PhD thesis, Univ. of Canterbury, Canterbury, New Zealand.
Tissell, J. R. (1990). “Structural panel shear walls.” APA Research Rep. No. 154, APA—The Engineered Wood Association, Tacoma, Wash.
Tissell, J. R., and Rose, J. D. (1988). “Plywood and shear walls in mobile homes.” APA Research Rep. No. 151, APA—The Engineered Wood Association, Tacoma, Wash.
Tuomi, R. L., and McCutcheon, W. J. (1978). “Racking strength of light-frame nailed walls.” J. Struct. Div. ASCE, 104(7), 1131–1140.
White, M. W. (1995). “Parametric study of timber shear walls.” PhD thesis, Virginia Polytechnic Institute and State Univ., Blacksburg, Va.
Yasumura, M. (1986). “Racking resistance of wooden frame walls with various openings.” Proc., Int. Council for Building Research Studies and Documentation, Working Commission W18—Timber Structures, Univ. of Karlsruhe, Karlsruhe, Germany, Paper 19-15-3.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 132 • Issue 1 • January 2006
Pages: 145 - 152
Copyright
© ASCE.
History
Received: Jun 18, 2004
Accepted: Jan 12, 2005
Published online: Jan 1, 2006
Published in print: Jan 2006
Notes
Note. Associate Editor: J. Daniel Dolan
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