This research investigated building components that can be produced and transported in a flat state and transformed to a spatial state without scaffolding on-site. Curved folding was employed to allow for a shape change between flat and spatial bending active structures. Bending generally allows for expressive curvature with simple flat production as well as easy customization. Limitations presented by laborious forming and upscaling of individually bent plates were overcome by large-scale curved folding.
The present research builds upon the context but adds a design framework for volumetric curved folded components, a bistable behavior, and comprehensive detailing regarding upscaling and increased structural capacity. The mechanism was studied on a kinematic level, considering geometrical rules of curved folding and
the design space. It was also studied on a kinetic level under the consideration of material properties specific to plywood. As a proof of concept, a 1:1 scale demonstrator was built. Finite element modeling software was used to optimize
the shape. The demonstrator was fabricated flat, folded up, and locked in its stable configuration by the bistability and bases. It supported twelve people with a self-weight of approximately 300kg.
%0 Journal Article
%1 rihaczek2022timbr
%A Rihaczek, Gabriel
%A Klammer, Maximilian
%A Basnak, Okan
%A Köerner, Axel
%A La Magna, Riccardo
%A Knippers, Jan
%C Alfonso XII, 3; 28014 Madrid, Spain
%D 2022
%I International Association for Shell and Spatial Structures (IASS)
%J Journal of the International Association for Shell and Spatial Structures
%K Structures Structural magna knippers 2022 Transformable framework Spatial itke material from:petraheim klammer Bending-Active rihaczek Aided Free-Form curved basnak Retractable körner Digital Deployable Timber Optimization origami Design Additive Manufacturing Computer
%N 4
%P 272 - 288
%R https://doi.org/10.20898/j.iass.2022.014
%T Timbr Foldr – A Design Framework and Material System for Closed Cross - Section Curved Folded Structures
%V 63
%X This research investigated building components that can be produced and transported in a flat state and transformed to a spatial state without scaffolding on-site. Curved folding was employed to allow for a shape change between flat and spatial bending active structures. Bending generally allows for expressive curvature with simple flat production as well as easy customization. Limitations presented by laborious forming and upscaling of individually bent plates were overcome by large-scale curved folding.
The present research builds upon the context but adds a design framework for volumetric curved folded components, a bistable behavior, and comprehensive detailing regarding upscaling and increased structural capacity. The mechanism was studied on a kinematic level, considering geometrical rules of curved folding and
the design space. It was also studied on a kinetic level under the consideration of material properties specific to plywood. As a proof of concept, a 1:1 scale demonstrator was built. Finite element modeling software was used to optimize
the shape. The demonstrator was fabricated flat, folded up, and locked in its stable configuration by the bistability and bases. It supported twelve people with a self-weight of approximately 300kg.
@article{rihaczek2022timbr,
abstract = {This research investigated building components that can be produced and transported in a flat state and transformed to a spatial state without scaffolding on-site. Curved folding was employed to allow for a shape change between flat and spatial bending active structures. Bending generally allows for expressive curvature with simple flat production as well as easy customization. Limitations presented by laborious forming and upscaling of individually bent plates were overcome by large-scale curved folding.
The present research builds upon the context but adds a design framework for volumetric curved folded components, a bistable behavior, and comprehensive detailing regarding upscaling and increased structural capacity. The mechanism was studied on a kinematic level, considering geometrical rules of curved folding and
the design space. It was also studied on a kinetic level under the consideration of material properties specific to plywood. As a proof of concept, a 1:1 scale demonstrator was built. Finite element modeling software was used to optimize
the shape. The demonstrator was fabricated flat, folded up, and locked in its stable configuration by the bistability and bases. It supported twelve people with a self-weight of approximately 300kg.},
added-at = {2023-01-17T13:24:46.000+0100},
address = {Alfonso XII, 3; 28014 Madrid, Spain},
author = {Rihaczek, Gabriel and Klammer, Maximilian and Basnak, Okan and Köerner, Axel and La Magna, Riccardo and Knippers, Jan},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/254d3a4a5bf50555dbaa5de703d3440b2/itke},
doi = {https://doi.org/10.20898/j.iass.2022.014},
institution = {Institute of Building Structures and Structural Design (ITKE)},
interhash = {51fb2bb419d32836b7625da9849f5a00},
intrahash = {54d3a4a5bf50555dbaa5de703d3440b2},
issn = {1028-365X},
journal = {Journal of the International Association for Shell and Spatial Structures},
keywords = {Structures Structural magna knippers 2022 Transformable framework Spatial itke material from:petraheim klammer Bending-Active rihaczek Aided Free-Form curved basnak Retractable körner Digital Deployable Timber Optimization origami Design Additive Manufacturing Computer},
language = {eng},
month = dec,
number = 4,
pages = {272 - 288},
publisher = {International Association for Shell and Spatial Structures (IASS)},
school = {University of Stuttgart},
timestamp = {2023-01-17T12:24:46.000+0100},
title = {Timbr Foldr – A Design Framework and Material System for Closed Cross - Section Curved Folded Structures},
volume = 63,
year = 2022
}
