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id ecaade2021_085
authors Apolinarska, Aleksandra Anna, Kuhn, Mathias, Gramazio, Fabio and Kohler, Matthias
year 2021
title Performance-Driven Design of a Reciprocal Frame Canopy - Timber structure of the FutureTree
source Stojakovic, V and Tepavcevic, B (eds.), Towards a new, configurable architecture - Proceedings of the 39th eCAADe Conference - Volume 1, University of Novi Sad, Novi Sad, Serbia, 8-10 September 2021, pp. 497-504
doi https://doi.org/10.52842/conf.ecaade.2021.1.497
summary This paper presents the design process of a recently built, 107 m2 free-form timber frame canopy. The structure is an irregular, funnel-shaped reciprocal frame resting on a central concrete column, and has been fabricated using a robot-based assembly process. The project addresses several known design and fabrication challenges: modelling of free-form reciprocal frames, complex interrelations between their geometry and structural behaviour, as well as develops custom software tools to represent different models and interface design and structural analysis environments. The performance-driven design is exemplified by studies on the relationship between geometric parameters of the reciprocal frame and the resulting force-flow and flexural stiffness of the structure. The final design is obtained by differentiating geometry and stiffness to reduce deflection and tensile stresses while observing fabrication constraints.The project demonstrates the application of computational design to create customized, performance-driven and robotically fabricated structures, and its successful realization validates the methods under real-life planning and construction conditions.
keywords Integrated computational design ; Performance-based design ; Reciprocal frames ; Timber structures; Robotic fabrication
series eCAADe
email apolinarska@arch.ethz.ch
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100%; open Apolinarska, AA, Bärtschi, R, Furrer, R, Gramazio, F and Kohler, M (2016) Find in CUMINCAD Mastering the Sequential Roof: Computational Methods for Integrating Design, Structural Analysis, and Robotic Fabrication , Advances in Architectural Geometry 2016, CH

100%; open Apolinarska, AA (2018) Find in CUMINCAD Complex Timber Structures from Simple Elements: Computational Design of Novel Bar Structures for Robotic Fabrication and Assembly , Ph.D. Thesis, ETH Zurich

100%; open Burger, J, Lloret-Fritschi, E, Taha, N, Scotto, F, Demoulin, T, Mata-Falcón, J, Gramazio, F, Kohler, M and Flatt, RJ (2020) Find in CUMINCAD Design and Fabrication of a Non-standard, Structural Concrete Column Using Eggshell: Ultra-Thin, 3D Printed Formwork , Second RILEM International Conference on Concrete and Digital Fabrication, Cham, pp. 1104-1115

100%; open Douthe, C and Baverel, O (2009) Find in CUMINCAD Design of nexorades or reciprocal frame systems with the dynamic relaxation method , Computers & Structures, 87(21), pp. 1296-1307

100%; open Kohlhammer, T, Apolinarska, AA, Gramazio, F and Kohler, M (2017) Find in CUMINCAD Design and structural analysis of complex timber structures with glued T-joint connections for robotic assembly , International Journal of Space Structures, 32(3-4), pp. 199-215

100%; open Melvin, J (2005) Find in CUMINCAD Serpentine Gallery Pavilion 2005 , Architectural Design, 75(6), pp. 102-106

100%; open Song, P, Fu, CW, Goswami, P, Zheng, J, Mitra, NJ and Cohen-Or, D (2013) Find in CUMINCAD Reciprocal frame structures made easy , ACM Transactions on Graphics, 32(4), pp. 94:1-94:13

100%; open Tamke, M, Riiber, J, Jungjohann, H and Thomsen, MR (2010) Find in CUMINCAD Lamella Flock , Advances in Architectural Geometry 2010, Vienna, pp. 37-48

100%; open Thoma, A, Adel, A, Helmreich, M, Wehrle, T, Gramazio, F and Kohler, M (2019) Find in CUMINCAD Robotic Fabrication of Bespoke Timber Frame Modules , Robotic Fabrication in Architecture, Art and Design 2018, Cham, pp. 447-458

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