Effective Width of Coupling Slabs in Shear Wall Buildings

by Wai K. Tso, (A.M.ASCE), Prof.; Dept. of Civ. Engrg. and Engrg. Mechanics, McMaster Univ., Hamilton, Ontario, Canada,
Adel A. Mahmoud, Grad. Asst.; Dept. of Civ. Engrg., Univ. of Windsor, Windsor, Ontario, Canada,

Serial Information: Journal of the Structural Division, 1977, Vol. 103, Issue 3, Pg. 573-586

Document Type: Journal Paper


The stiffness of a coupling slab between two shear walls is computed by means of the finite element method. A number of common wall configurations are considered. The results are expressed in terms of the effective widths of the slab and are presented in design chart form. Comparisons to available experimental results are made. It is concluded that the theoretical calculations are sufficiently accurate for design purposes, provided a correction for local deformation of the walls is made when the wall opening is small.

Subject Headings: Shear walls | Effective width | Coupling | Slabs | Finite element method | Stiffening | Comparative studies | Plastic design

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