Contribution of Gypsum Wallboard to Racking Resistance of Light-Frame Walls.
Abstract
Gypsum wallboard is the most commonly used interior wall sheathing material. Evidence suggests that it contributes to the shear performance of light-frame walls; however, it has received little recognition as a structural material. A better understanding of the structural behavior of gypsum wallboard could contribute to more efficient light-frame construction. Thirty light-frame walls were evaluated to characterize the gypsum wallboard contribution to shear wall racing performance. Variables studied included windbracing, wall length, and wallboard orientation. Wallboard and windbracing were found to interact as parallel elements. The relationship between racking resistance and wall length was nonlinear for continuous wallboard diaphragms and varied with deformation level. Wallboard orientation had a significant effect on strength and stiffness. Results of this study provide a basis for engineers and code authorities to judge the contribution of gypsum wallboard to the shear resistance of walls under windloads and seismic loads. Results will also be useful in planning future research for light-frame construction.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1983
- Accession Number
- ADA138488
Entities
People
- R. W. Wolfe
Organizations
- Forest Products Laboratory