Deployable/retractable structures towards sustainable development

Friedman, Noémi; Farkas, G.; Ibrahimbegović, Adnan

doi:10.1556/pollack.6.2011.2.8

Cited by 14 publications

(7 citation statements)

References 8 publications

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“…The tallest buildings consist of the well-designed structural system, that we can use modeling by bar-joint systems that easy to produce and to build, although the manufacturer and the assembly workers go against this statement. Innovative design, building methods, combined with the reinforced materials as highstrength concrete widely used in high-rise buildings and scaffolding [1,3,[13][14][15][50][51][52][53][54][55][56][57][58][59][60]].…”

Section: The Braced 4 × 4 Frameworkmentioning

confidence: 99%

Create a Rigid and Safe Grid-Like Structure

Kovács¹,

Kem²

2019

Period. Polytech. Civil Eng.

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The failure of the building is not the consequence of the not strong enough elements of the structure in the majority of the cases, but the bracing elements inappropriate places. We consider a 4 × 4 and 4 × 5 braced frames to understand the connections between the lateral stiffnesses, and bracing graph to achieve the stiffest and the more safety design. In our consideration, we study those relationships that based on our frame using their finite element analyses and some new result in optimizations of structural design.We offer some conclusions, including perspectives and future developments in the rigidity of scaffolds and tall building as symmetrical and grid-like bar-joint frameworks. Keywordsbraced scaffolding, n-story building, the safety of the structure, kinematics of braced structure

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Section: The Braced 4 × 4 Frameworkmentioning

confidence: 99%

Create a Rigid and Safe Grid-Like Structure

Kovács¹,

Kem²

2019

Period. Polytech. Civil Eng.

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“…During packing, the joints of the boundary polygons (the one on the top and the one on the bottom) are horizontally fixed, thus the length of their horizontal bars is constant. Furthermore, if we assume that the bracing bars are perfectly rigid (incompressible) and that the folding is uniform and has cyclic symmetry, the current length of the bars of the middle polygon stretches out during packing to: (4) where is the actual radius of the tangential circle of the middle, expanding polygon which can be determined with:…”

Section: Kinematical Equationsmentioning

confidence: 99%

“…Taking into account the currently prospective research field of the architectural application of dynamical and adaptive structures (e.g. [4][5][6]), the exploration of this immature system could be forwardlooking. This geometry could be used for a pop-out bridge construction ( Fig.…”

Section: Introductionmentioning

confidence: 99%

Parametric Study of the Elementary Segment of an Antiprismatic Pop-Up Deployable Lattice Column

Friedman

Farkas

Ibrahimbegović

2014

YBL Journal of Built Environment

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In this article the primary segment of an antiprismatic pop-up mast is analyzed, that can be applied for largely flexible architectural designs, like deployable bridges or transportable look-out towers. This deployable column, consisting of rigid plates, rigid and elastic bars, is characterized by its selfdeploying behavior due to the energy accumulated from lengthening the elastic bars during packing. The main goal of this paper is to prepare the analysis of the complex structure by a herein detailed investigation of the behavior of one, basic element of the deployable mast. After the analytical examination of the general behavior of the basic segment a geometrically nonlinear finite element formulation is used to trace the force-displacement diagram. Besides the parametric study, approximations of main mechanical parameters are herein given for facilitating preliminary design of such deployable structures.

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“…In the discipline of architecture, the future of design is based on the creation of dynamic and flexible spaces 4 by virtue of convertible, temporary and lightweight structures for a sustainable form of engineering made necessary by the decrease in natural resources, global climate variations and rapidly increasing population. 5 Among the review papers in the field of deployable structures, some of the literature proposes classifications of such structures, while some authors do not overtly carry out a classification, preferring to list types of deployable structures along with showing relevant application-based examples. Furthermore, some of the more substantial reviews were published some years ago, and new technologies and types of deployable structures have since been developed, for example, tensairities 6 invented at the beginning of the 21st century.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Deployable structures classification: A review

Fenci

Currie

2017

International Journal of Space Structures

110

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Deployable structures have the capacity to transform and predictably adopt multiple predetermined configurations, moving through known paths, while deploying in a controlled and safe way. These characteristics introduce benefits when considering issues such as ease of transportation, erection and the overall sustainability of the structure by means of high material efficiency, modularisation and maximum use of natural energy resources. The aim of this article is to provide a critical review of existing attempts at classifying deployable structures identifying connections between different families through their mechanical and structural behaviours. The classifications selected consider theoretical and applied deployable structures, not focusing on a single application of deployable structures but including those ranging from spatial applications, to temporary and disaster relief structure, through to medical applications, providing coherence where terminology varies between applications. In order to gain a consistent understanding, tree diagrams were created for the review/classification to allow drawing commonalities and establishing differences between authors. A chronological approach was adopted, using key review work as focal points for the timeline, complemented by smaller more specific pieces of work. This enabled the identification of common features and divergences between the different authors, bringing to the conclusion that a clear, comprehensive, consistent and unified classification of deployable structures is currently missing within the field.

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Deployable/retractable structures towards sustainable development

Cited by 14 publications

References 8 publications

Create a Rigid and Safe Grid-Like Structure

Create a Rigid and Safe Grid-Like Structure

Parametric Study of the Elementary Segment of an Antiprismatic Pop-Up Deployable Lattice Column

Deployable structures classification: A review

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