Conclusions and Recommendations

A number of analytical models, which had originally been developed for wood framed shear walls, were evaluated with respect to their ability to predict the strength and deflection of a series of single-storey light gauge steel frame / wood panel shear wall test specimens (Boudreault, 2005; Branston, 2004; Chen,

2004) . A simple analytical model based on the work of Kallsner & Lam (1995) was presented and a comparison with the test results was completed. This was made possible by the sheathing connection tests that were carried out by Okasha & Rogers (2004). The lateral shear yield resistance and the deflection of full-scale walls can be effectively predicted with the model if appropriate connection test data is available. Good agreement was obtained between the predicted and test strength values in both monotonic and cyclic cases using the Kallsner & Lam approach. The deflection model only showed satisfactory agreement with the test results. The yield strength and initial stiffness per connection with 25 mm edge distance can be relied on to predict the yield lateral resistance and deflection of full-scale shear walls, if both the connection and full-scale test results are analyzed using the EEEP methods. In order to better predict the strength and deflection of the full-scale shear walls, the conditions for connection tests need to be kept consistent with those in full-scale tests, such as the loading speed and edge distance. In future connection tests, it is suggested that the edge distance parallel to the loading direction be the same as the perimeter screw spacing in the full-scale shear wall tests. As well, in order to obtain a better prediction of the full-scale tests, each connection test specimen should contain at least three screws to account for the variation of sheathing material.