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Parametric design of diagrid tall buildings regarding structural efficiency

ABSTRACT In this paper, the effects of form parameters on the structural efficiency of tall buildings are investigated by generating a parametric platform. The modifications of the form are normally adopted by architects in tall buildings to satisfy their aesthetic and functional needs. The effects of tapering and changing plan shape as two commonly used modifications, are investigated applying the diagrid structural system which provides the structure with high stiffness and efficiency as well as satisfying the architectural needs. Forms are generated in Rhinoceros and exported to SAP2000 to be analysed structurally through a response spectrum analysis. The results show tapering in the height section leads to more impacts on structural efficiency parameters in comparison to plan changes. The circle and the polygons with more sides create more efficient forms. Some outcomes show more than 20% lighter structures in concave sections than normal buildings.