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A platform for research: civil engineering, architecture and urbanism
Deployable tensegrity masts for membrane structures
During the last ten years membrane structures made of fabrics entered the building market. Theoretically there is an infinite quantity of possible forms that can be gained from tensioned fabrics as well as plastic films, etc. The membrane structures are usually complemented with the aid of many steel components. Though the amount of steel involved depends mainly on the general configuration, loads, spans, and design, it is finally responsible for determining the weight of the structure. Because tensegrity principles tend to reduce weight, their use in membrane structures is correct so as to same materials, cost and energy. For example, individual elements of fabric can be underslung to support elements such as the masts. When properly pre-stressed, tensegrity structures can be treated in a similar manner as frameworks with pin jointed bars. The mast can be built as a space framework. From the deployable structures point of view, tensegrity structures are very interesting since the compressive elements are disjointed. This provides the possibility to fold these members and hence the structure can be compactly stowed. In this paper, the spirit of deployable tensegrity masts is illustrated through a common division of the dodecahedron into the identical tetrahedra, as well as through prisms and anti-prisms.
Deployable tensegrity masts for membrane structures
During the last ten years membrane structures made of fabrics entered the building market. Theoretically there is an infinite quantity of possible forms that can be gained from tensioned fabrics as well as plastic films, etc. The membrane structures are usually complemented with the aid of many steel components. Though the amount of steel involved depends mainly on the general configuration, loads, spans, and design, it is finally responsible for determining the weight of the structure. Because tensegrity principles tend to reduce weight, their use in membrane structures is correct so as to same materials, cost and energy. For example, individual elements of fabric can be underslung to support elements such as the masts. When properly pre-stressed, tensegrity structures can be treated in a similar manner as frameworks with pin jointed bars. The mast can be built as a space framework. From the deployable structures point of view, tensegrity structures are very interesting since the compressive elements are disjointed. This provides the possibility to fold these members and hence the structure can be compactly stowed. In this paper, the spirit of deployable tensegrity masts is illustrated through a common division of the dodecahedron into the identical tetrahedra, as well as through prisms and anti-prisms.
Deployable tensegrity masts for membrane structures
Zerlegbare Spanngerüste für Membranstrukturen
Bieniek, Zbigniew (author)
2005
6 Seiten, 8 Bilder, 7 Quellen
Conference paper
English
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