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A simplified design approach for modelling shear force demand on tower walls supported on a transfer structure in regions of lower seismicity

  • Yacoubian, Mehair ;
  • Lam, Nelson ;
  • Lumantarna, Elisa ;
  • Wilson, John L.
  • Received : 2018.02.20
  • Accepted : 2018.05.28
  • Published : 2018.07.25

Abstract

Buildings featuring a transfer structure can be commonly found in metropolitan cities situated in regions of lower seismicity. A transfer structure can be in the form of a rigid plate or an array of deep girders positioned at the podium level of the building to support the tower structure of the building. The anomalous increase in the shear force demand on the tower walls above the podium is a major cause for concern. Design guidance on how to quantify these adverse effects is not available. In this paper a simplified method for quantifying the increase in the shear force demand on the tower walls is presented. In view of the very limited ductile nature of this type of construction the analysis presented herein is based on linear elastic behaviour.

Keywords

displacement-controlled behaviour;transfer structures;transfer plate;transfer girder;tower walls

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