Title page for ETD etd-111897-95624

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
Dolan, James Daniel Committee Chair
Loferski, Joseph R. Committee Member
White, Maurice W. Committee Member
  • shearwall
  • timber
  • anchor
  • tie-down
  • cyclic
  • monotonic
  • wood
Date of Defense 1997-12-05
Availability unrestricted
Effect of Overturning Restraint on the Performance of Fully Sheathed

and Perforated Timber Framed Shear Walls


Christian P. Heine

Committee Chairman: Dr. James D. Dolan

Wood Science and Forest Products


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


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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