Investigation of Dynamic Increase Factors in Light-Frame Wood Stud Walls Subjected to Out-of-Plane Blast Loading
Publication: Journal of Structural Engineering
Volume 141, Issue 6
Abstract
The results of an experimental program investigating the dynamic increase factors of light-frame wood stud walls under blast loading are presented in this paper. A total of 20 walls with two different sheathing types and thicknesses were tested to failure under static and dynamic loading. The study found that the observed failure mode for both static and dynamic loading was flexure; however, a difference in the type of flexural failure was observed. Average increase factors of 1.40 and 1.18 on the resistance and stiffness, respectively, were found. A detailed literature review combined with the test results from the current project yielded a strong correlation between the increase in strain rate and the relative increase in strength and an equation relating the dynamic increase factor (DIF) on the resistance to strain rate was proposed for strain rates in the ranges of 1.67– .
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References
Air Force Hand Book (AFH) 10-2401. (2006). “Vehicle bomb mitigation guide.” United States Air Force Force Protection Battlelab, Washington, DC.
ANSI/AWC. (2012). “National design specification for wood construction.” American Wood Council, Washington, DC.
Barrett, J. D., and Lau, W. (1994). Canadian lumber properties, Canadian Wood Council, Ottawa, ON, Canada.
Biggs, J. M. (1964). Introduction to structural dynamics, McGraw-Hill, New York.
British Standards Institute. (2005). “Eurocode 1: Actions on structures. Part 1–4.”, London, U.K.
Canadian Standard Association (CSA). (2012). “Design and assessment of buildings subjected to blast loads.”, Mississauga, ON, Canada.
Canadian Standard Association (CSA). (2009). “Engineering design in wood.”, Mississauga, ON, Canada.
Kimbell, R. G., and Fies, J. (1953). Two typical wood frame houses exposed to energy released by nuclear fission, National Lumber Manufacturers Association, Washington, DC.
Lacroix, D. (2013). “Behaviour of light-frame wood stud walls subjected to blast loading.” M.A.Sc. thesis, Univ. of Ottawa, Ottawa, ON, Canada.
Lacroix, D., and Doudak, G. (2012). “Behaviour of typical light-frame wood stud walls subjected to blast loading.” Proc., World Conf. on Timber Engineering, Strength and Serviceability—Extreme Events, New Zealand Timber Design Society, Auckland, New Zealand, 561–569.
Liska, J. A. (1950). Effect of rapid loading on the compressive and flexural strength of wood, Forest Products Laboratory, U.S. Forest Service, USDA, Madison, WI.
Liu, W.-F., and Bulleit, W. M. (1995). “Overload behavior of sheathed lumber systems.” J. Struct. Eng., 1110–1118.
Lloyd, A. (2010). “Performance of reinforced concrete columns under shock tube induced shock wave loading.” M.A.Sc. thesis, Univ. of Ottawa, Ottawa, ON, Canada.
Lloyd, A., Jacques, E., Abdelalim, O., Saatcioglu, M., Braimah, A., and Doudak, G. (2011). “High strain-rate effects on the dynamic material properties of timber beams.” 2nd Int. Engineering Mechanics and Materials Specialty Conf., Canadian Society of Civil Engineering, Ottawa, ON, Canada.
Mindess, S., and Madsen, B. (1986). “The fracture of wood under impact loading.” J. Mater. Struct., 19(1), 49–53.
Randall, P. A. (1955). “Damage to conventional and special types of residences exposed to nuclear effects.”, Federal Civil Defense Administration, Battle Creek, MI.
Sukontasukkul, P., Lam, F., and Mindess, S. (2000). “Fracture of parallel strand lumber (PSL) under impact loading.” J. Mater. Struct., 33(7), 445–449.
Syron, W. D. (2010). “Strain rate-dependent behavior of laminated strand lumber.” M.A.Sc. thesis, Univ. of Maine, Orono, ME.
Widehammar, S. (2004). “Stress-strain relationships for spruce wood: Influence of strain rate, moisture content and loading direction.” J. Exp. Mech., 44(1), 44–48.
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© 2014 American Society of Civil Engineers.
History
Received: Sep 18, 2013
Accepted: Jun 13, 2014
Published online: Aug 1, 2014
Discussion open until: Jan 1, 2015
Published in print: Jun 1, 2015
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