The challenge of combining two interesting structural principles, being form-active structures and bending-active structures, into a transformable configuration is investigated through a case study. The aim is to obtain a structurally efficient (quasi-)selfsupporting structure with a minimum of external connection points, retaining the membrane pretensioned in all the phases of the deployment.
This paper describes the conceptual design and the structural analysis of a kinematic bending-active membrane structure. The membrane is tensioned in a hyperbolic paraboloid ring, which serves as the bending-active boundary. Keeping the two lower points fixed at ground level and pushing the two upper points towards each other, the structure is transformed into its curled (closed) state. At different intermediate points on the ring bending-active beam elements are positioned, keeping the membrane tensioned when folding.
A numerical model serves as a design and calculation tool, used to (i) study the influence of different membrane materials and varying prestress ratios, (ii) improve the kinematic deployment and (iii) dimension the bending-active boundary elements.
Original languageEnglish
Title of host publicationVII International Conference on Textile Composites and Inflatable Structures
Subtitle of host publicationSTRUCTURAL MEMBRANES 2015
EditorsE. Oñate, K.-U. Bletzinger, B. Kröplin
PublisherInternational Center for Numerical Methods in Engineering (CIMNE)
Pages368-379
Number of pages12
ISBN (Electronic)978-84-944244-8-9
Publication statusPublished - Oct 2015
EventStructural Membranes 2015 - Barcelona, Spain
Duration: 19 Oct 201521 Oct 2015

Conference

ConferenceStructural Membranes 2015
CountrySpain
CityBarcelona
Period19/10/1521/10/15

    Research areas

  • active bending, form-active structures, membranes, kinematic

ID: 14417080