Construction System for Reversible Self-Formation of Grid Shells. Correspondence between physical and digital form (2018)
article⁄Construction System for Reversible Self-Formation of Grid Shells. Correspondence between physical and digital form (2018)
abstract⁄This paper presents a construction system which offers an efficient materialization method for doublecurved gridshells. This results in an activebending system of controlled deflections. The latter system embeds its construction manual into the geometry of its components. Thus it can be used as a selfformation process. The two presented gridshell structures are composed of geometryinduced, variable stiffness elements. The latter elements are able to form programmed shapes passively when gravitational loads are applied. Each element consists of two layers and a slip zone between them. The slip allows the element to be flexible when it is straight and increasingly stiffer while its curvature increases. The amplitude of the slip defines the final deformation of the element. As a result, nonuniform deformations can be obtained with uniform cross sections and loads. When the latter elements are used in grid configurations, selfformation of initially planar surfaces emerges. The presented system eliminates the need for electromechanical equipment since it relies on material properties and hierarchical geometrical configurations. Wood, as a flexible and strong material, has been used for the construction of the prototypes. The fabrication of the timber laths has been done via CNC industrial milling processes. The comparison between the initial digital design and the resulting geometry of the physical prototypes is reviewed in this paper. The aim is to inform the design and fabrication process with performance data extracted from the prototypes. Finally, the scalability of the system shows its potential for largescale applications, such as transformable structures.
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| Year |
2018 |
| Authors |
Baseta, Efilena; Bollinger, Klaus. |
| Issue |
ACADIA 2018: Recalibration. On imprecisionand infidelity. |
| Pages |
366-375 |
| Library link |
N/A |
| Entry filename |
construction-system-reversible-self-formation-grid |
