Fabricating Topologically Optimized Tree-Like Pavilions Using Large-Scale Robotic 3D Printing Techniques

Abstract

This research addresses innovations in building structural components through the generative design technique Bi-directional Evolutionary Structural Optimization (BESO) and the application of large-scale 3D robotic printing to produce efficient and elegant spatial structures. The innovative pavilion discussed in this paper demonstrates a design process and the ambitions of the research group through a full-scale model of large-span spatial structures. The focus of this work is the use of a modified BESO technique to optimize the structure, which features branches of various sizes and then applies 'skin' surfaces according to the direction of the main structure. The innovative production, construction, and assembling methodologies are to replace welded ultimately, forged, and cast components with large robotic 3D printed components and bolting methods. The advantages of the new design and construction process are less labor, fewer joints, shorter assembling time, lower cost & more efficient material usage and more complex & elegant large structural form.