Loading of roof to wall connections in a timber structural system — YRD

Loading of roof to wall connections in a timber structural system (920)

Navarathnman Satheeskumar 1 , David Henderson 1 , John Ginger 1
  1. James Cook University, Townsville, QLD, Australia
The roof to wall connection is designed to transfer the uplift and lateral loads during strong windstorms in a building structural system. In Australia, generally roof trusses are tied with triple grip connection to the wall top plate. Hence, this study focused on the roof to wall triple grip connection response loading. The numerical model analysis method is an alternative method to assess the roof to wall connection response and uplift capacity in design practice. A three dimensional (3D) triple grip connection model was assembled and subjected to static load by using ABAQUS (6.12-3) finite element software as shown in Figure 1. In addition this study investigated the single nail joint response to develop the roof to wall triple grip connection model. Moreover, this study sought to investigate the construction errors to predict the up lift capacity of roof to wall triple grip connections. This study has found the significant reduction in the uplift capacity of roof to wall triple grip connection, when it is assembled with construction errors (i.e. a nail missing on the truss and top plate).
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