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      Hexagrid-Voronoi transition in structural patterns for tall buildings

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          Abstract

          In this paper, a first insight into the role that non-conventional structural patterns might play in the design of tall buildings is presented. The idea is to explore the mechanical properties of selected non-conventional structural patterns, in the form of both regular (Hexagrid) and irregular (Voronoi tessellation inspired) arrays, in order to assess their actual applicability in tall building design. For this aim, the concept of Representative Volume Element (RVE) and a classical homogenization-based micromechanical approach are employed for identifying the pattern units and deriving the relevant generalized stress-strain relationships. In the case of irregular patterns based on Voronoi diagrams, obtained by perturbing prescribed key geometrical features of hexagrids, a statistically significant sample of RVEs is defined on the basis of sensitivity analyses, and the related mechanical characterization is developed in statistical terms. Finally, a preliminary stiffness-based design procedure is proposed and applied to a tall building model with Voronoi exoskeleton. In conclusion, a discussion on the effectiveness of the design procedure and on the structural efficiency of the Voronoi patterns for tall buildings is presented

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          Author and article information

          Journal
          Frattura ed Integrità Strutturale
          Gruppo Italiano Frattura
          01 January 2019
          : 13
          : 47
          : 186-208
          Article
          10c9fa1a735a4849af6eb29beb5d7543
          10.3221/IGF-ESIS.47.15
          7529db52-33a6-48c2-bf80-0c341108d493

          This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          History
          Categories
          Mechanical engineering and machinery
          TJ1-1570
          Structural engineering (General)
          TA630-695

          Materials technology,Materials properties,Materials characterization,Engineering,Civil engineering,Mechanical engineering
          Voronoi ,Hexagrid ,Stiffness Design ,Steel Structure ,Homogenization Method

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