Morphogenesis of surfaces with planar lines of curvature and application to architectural design

Mesnil, Romain; Douthe, Cyril; Baverel, Olivier; Léger, Bruno

doi:10.1016/j.autcon.2018.08.007

Cited by 22 publications

(11 citation statements)

References 31 publications

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“…This strategy brings several potential complications which are not in the scope of this article: since the pentagonal facets are not planar and might thus be harder to manufacture and the assembly sequence of the pentagonal hoop might require a complex assembly kinematic where all the blocks would have to be installed at once. These limitations could be adressed with specific strategies, for example if the quad mesh is aligned with principal curvature directions then the resulting pentagon could easily be planarised [38]: several morphological strategies have been developed in the last decade for that purpose [39,40].…”

Section: Free-edges and Interlocked Structuresmentioning

confidence: 99%

Free-form structures from topologically interlocking masonries

Loing

Baverel

Caron

et al. 2020

Automation in Construction

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The paper presents new results about the geometry of topological interlocking masonries and some possibilities they present to build without formwork. Construction without the use of formwork may be an important issue concerning both productivity increase and decreasing of waste generated on a construction site. Due to the development of computational design and robotics in the construction industry, it makes sense to (re)explore innovative design and process of complex masonry structures. The design of this kind of masonry is standard for planar structures, and in this paper, a generalization is proposed for the parametric design of curved structures. To achieve this, a criterion for translationally interlocked structure based on quadrilateral meshes is exhibited. The application of this criterion is then extended to masonry structures derived from other patterns. Physical prototypes of topological interlocking masonry are also presented. One of these designs seems to allow construction without formwork.

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Section: Free-edges and Interlocked Structuresmentioning

confidence: 99%

Free-form structures from topologically interlocking masonries

Loing

Baverel

Caron

et al. 2020

Automation in Construction

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“…If the target surface has umbilics, the pattern may have discontinuities. It is therefore preferable to use surfaces that do not have umbilics, for example Monge surfaces or surfaces with planar curvature lines in one or two directions (Mesnil et al 2018;.…”

Section: Generationmentioning

confidence: 99%

Caravel meshes: A new geometrical strategy to rationalize curved envelopes

et al. 2020

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Curved structural envelopes have been popular in architecture in the past decades. Their main limitation is their high cost, which is due in particular to the manufacturing complexity induced by curvature. This article introduces Caravel meshes, a new family of meshes that offers geometrical properties allowing a significant reduction of fabrication complexity. In particular, for gridshells, the most complicated fabrication aspect is usually the connection between the structural elements -beams and panels. In Caravel meshes, all these connections are rationalized. Beams are connected to panels without kinks, beams are connected top each other with repetitive which are also free of geometrical torsion. We show that a great variety of mesh combinatorics is possible with these properties. We study in particular quadrangular and hexagonal patterns. In each case, we estimate the possible shapes using differential geometry. We show that hexagonal Caravel meshes offer a significant design freedom, such that other geometrical properties simplifying fabrication can be obtained, such as edge offsets. Finally, we show that Caravel meshes offer many new ways to design curved structural systems, in which beams and panels may work together mechanically. We highlight one application for the fast prototyping of curved surfaces.

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“…The process constraints as well as performance metrics have been merged in a parametric model, see Figure 6. The curved tessellation has been obtained from the principal curvature lines of a cyclidic net generated thanks to the method described in [9]. Each block has a unique geometry and has been made by robotic hot-wire cutting, see Figure 7.…”

Section: Project Descriptionmentioning

confidence: 99%

Free Deposition Printing for Space Truss Structures

et al. 2020

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This paper proposes a specific extrusion method for 3D printing of mortar called free deposition by the authors. It consists in letting a fine mortar flow through a moving nozzle above a support, here EPS foam. The aim is to obtain a regular lace, thus to avoid instability phenomena like coiling, and ensure a regular diameter, without stretching the lace. A rheological characterisation is proposed and is experimentally tested. This work takes place in the context of the building of space trusses in 3D printed concrete thanks to progressively assembled EPS foam blocks acting as support.

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Morphogenesis of surfaces with planar lines of curvature and application to architectural design

Cited by 22 publications

References 31 publications

Free-form structures from topologically interlocking masonries

Free-form structures from topologically interlocking masonries

Caravel meshes: A new geometrical strategy to rationalize curved envelopes

Free Deposition Printing for Space Truss Structures

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