Abstract
Research carried out on light-gage metal shear diaphragms clearly indicates that the shear behaviour depends mainly on the behaviour of the fasteners. There is no generally accepted theory to predict the shear stiffness and strength of diaphragms with welded connections, even though there exist some approximate methods for the case of diaphragms with mechanical fasteners. Simplified formulas are presented in this paper for calculating the shear stiffness and strength of metal shear diaphragms. The analysis is based on the observed deformation pattern of the panels and on the failure mode of the fasteners. By using the test data of the fasteners, the shear characteristics of many diaphragms are predicted and compared with the test results. It is of interest to note that the proposed formulas are suitable for diaphragms with any types of fasteners. Because of their generality and simplicity, the theory would be extremely useful for design engineers.
Published Version
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