Type of Document	Master's Thesis
Author	Heine, Christian Peter
Author's Email Address	cheine@vt.edu
URN	etd-111897-95624
Title	Effect of Overturning Restraint on the Performance of Fully Sheathed and Perforated Timber Framed Shear Walls
Degree	Master of Science
Department	Forest Products
Advisory Committee	Advisor Name Title Dr. J. Daniel Dolan Committee Chair Joseph R. Loferski Committee Member Maurice W. White Committee Member
Keywords	shearwall timber anchor tie-down cyclic monotonic wood
Date of Defense	1997-12-05
Availability	unrestricted
Abstract Effect of Overturning Restraint on the Performance of Fully Sheathed and Perforated Timber Framed Shear Walls By Christian P. Heine Committee Chairman: Dr. James D. Dolan Wood Science and Forest Products (Abstract) This study investigates the monotonic and cyclic response of light-frame wood shear walls with and without openings. Effects of overturning restraint in the form of tie-down anchors and corner segments on light-frame shear walls with and without door and window openings were quantified. While the results are useful to refine a design methodology for shear walls containing openings, they also provide important knowledge that is needed to accurately quantify anchorage requirements for shear wall design, and assess remaining load and ductility capacity of wood frame buildings after earthquakes or hurricanes. Sixteen full-scale wall specimens were tested using monotonic and sequential phased displacement (SPD) patterns. A total of five different wall configurations, five anchorage, and two loading conditions were used. All walls were eight feet (2.4m) high. Straight wall specimens were forty feet (12.2m) long, whereas corner walls measured twelve feet (3.7m) in length. The analysis includes data from a previous investigation in order to further expand the scope of this study. Results reveal that ultimate capacity and stiffness increase with increasing overturning restraint. A shift in failure mode was observed when overturning restraints were omitted. Accumulated damage experienced by the wall specimens tested cyclically was fairly uniform, regardless of the amount of overturning restraint or size of openings present
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