Torsional Analysis of Perforated Core Structure

by Avigdor V. Rutenberg, (M.ASCE), Visiting Research Assoc.; Dept. of Civ. Engrg. and Engrg. Mechanics, McMaster Univ., Hamilton, Ontario, Canada; on leave from Technion, Israel Inst. of Tech., Haifa, Israel,
Wai K. Tso, (A.M.ASCE), Assoc. Prof.; Dept. of Civ. Engrg. and Engrg. Mechanics, McMaster Univ., Hamilton, Ontario, Canada,


Serial Information: Journal of the Structural Division, 1975, Vol. 101, Issue 3, Pg. 539-550


Document Type: Journal Paper

Discussion: Solanki Himat T. (See full record)
Closure: (See full record)

Abstract: A simple method for torsional analysis of perforated core wall structures considering shear deformation is presented. The governing differential equation is derived from compatibility using open section thin-wall torsion-bending theory. The method is compared with conventional analysis in which shearing strains are ignored to show that for a narrow band of openings or stiff connecting beams the conventional analysis overestimates the rotational stiffness of the core wall assembly. This is also borne out by the experimental evidence. Since the governing differential equation has the same form as that of the conventional solution, existing tables and graphs can be used to obtain the deformations and internal forces.

Subject Headings: Shear walls | Torsion | Core walls | Shear deformation | Structural analysis | Differential equations | Strain | Beams

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