Automated and User Controlled Variation and Optimization of Grid Structures

Chapter

Abstract

This paper discusses newly developed, interactive structural design tools and investigates the capability of design variation, optimization and material reduction of grid structures due to loop procedures. Most existing beam grid structures have same cell sizes and the members have the same cross sections; hence these structures have a large number of member cross sections, which are not adequately utilized. There is potential to optimize material usage in grids. The optimization and variation process in this research results in a material redistribution that reflects the range of internal forces in structural members due to cross sectional or grid density (spacing) variation. The paper presents the development of interactive design tools and uses the case study of rectangular grids as a proof of concept. The aim of the tools is to allow users to integrate structural aspects while maintaining the constructional logic and controlling all spatial design aspects as well. The parametric design tools are developed in Grasshopper using custom made C# scripts. The parametric geometry models are linked to the finite element program RFEM and enable an iterative design and optimization process based on the static analysis as well as on the user controlled parameters.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Institute of Structural DesignGraz University of TechnologyGrazAustria

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