Structural Engineering and Mechanics

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'Modularised' Closed-Form Mathematical model for predicting the bracing performance of plasterboard clad walls

  • Liew, Y.L. (Department of Civil and Environmental Engineering, The University of Melbourne) ;
  • Gad, E.F. (School of Engineering and Science, Swinburne University of Technology) ;
  • Duffield, C.F. (Department of Civil and Environmental Engineering, The Australian Centre for Public Infrastructure, Melbourne University Private)
  • Received : 2004.05.07
  • Accepted : 2005.02.15
  • Published : 2005.05.10
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Abstract

This paper presents a new approach to predict the racking load-displacement response of plasterboard clad walls found in Australian light-framed residential structures under monotonic racking load. The method is based on a closed-form mathematical model, described herein as the 'Modularised' Closed-Form Mathematical model or MCFM model. The model considers the non-linear behaviour of the connections between the plasterboard cladding and frame. Furthermore, the model is flexible as it enables incorporation of different nailing patterns for the cladding. Another feature of this model is that the shape of stud deformation is not assumed to be a specific function, but it is computed based on the strain energy approach to take account of the actual load deformation characteristics of particular walls. Verification of the model against the results obtained from a detailed Finite Element (FE) model is also reported. Very good agreement between the closed form solution and that of the FE model was achieved.

Keywords

References

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