Optimization-driven conceptual design of truss structures in a parametric modelling environment

Linwei He, Qingpeng Li, Matthew Gilbert, Paul Shepherd, Catherine Rankine, T. Pritchard, Reale Vincenzo

Research output: Contribution to journalArticlepeer-review

Abstract

Structural optimization methods can be extremely powerful when used at the initial, conceptual, design stage of a building or bridge structure, potentially identifying materially efficient forms that are beyond the imagination of a human designer. This is particularly important at present, given the pressing need to reduce the carbon footprint associated with the built environment in the face of the current climate emergency. In this contribution, a computationally efficient global-local optimization framework is proposed, in which a linear programming-based truss layout optimization step is employed to generate initial (near-)optimal designs, with a non-linear optimization step then used to generate designs that take account of real-world complexity. To facilitate rapid exploration of design concepts, the proposed global-local optimization framework has been made available in the Peregrine plug-in for the popular Rhino-Grasshopper parametric modelling environment. The efficacy of the approach is demonstrated through its application to a range of case study problems.
Original languageEnglish
Pages (from-to)469-482
Number of pages14
JournalStructures
Volume37
Early online date18 Jan 2022
DOIs
Publication statusPublished - 31 Mar 2022

Keywords

  • Layout optimization
  • Parametric design
  • Structural design
  • Structural optimization
  • Topology optimization

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Building and Construction
  • Civil and Structural Engineering
  • Architecture

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