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IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century

IASS Symposium 2016

SESSION: Form Finding & Optimization

Shape optimization of compression structures

< Table of Contents for Form Finding & Optimization
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Form Finding & Optimization
  • Pages: 7
  • Title: Shape optimization of compression structures
  • Author(s): Petra Gidak, Mario Uroš, Damir Lazarević
  • Keywords: form finding, tension – compression analogy, kinematic constrain, compression structure
Finding the form of structures consisting primarily of compressive elements is not always an easy task. In order to facilitate the design process of compression structures, the shape of a mirrored tensile structure can therefore be adopted, based on the traditional tension-compression analogy. Adding kinematic constraints to the original definition of the force density method, fixing the length of each structural element, the procedure may be applied iteratively until given conditions are satisfied Fresl et al [1]. Beside fixed element length, different kinematic constrain can be used in the sense of wanted element forces. Moreover, for some elements one can define wanted length and for others target tensile force. This paper will investigate different forms of compressive structure as a result of form finding with tension - compression analogy using diverse kinematic constraints applied to the same layout of tension elements.

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