A Novel Planar Scissor Structure Transforming between Concave and Convex Configurations

A Novel Planar Scissor Structure Transforming between Concave and Convex Configurations

M. Yar K. Korkmaz G. Kiper F. Maden Y. Akgün E. Aktas

Izmir Institute of Technology, Turkey

Yas¸ar University, Turkey

Gediz University, Turkey

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In this paper, a novel two-dimensional scissor structure that transforms between concave and convex configurations is presented. The structure is designed by a method of assembling kite or anti-kite loops in the flat configuration. Angulated units are generated from the assembled loops. Finally, a new angulated scissor unit is introduced in order to design the novel scissor structure.


angulated units, anti-kite loops, kite loops, scissor structure


[1] Pinero, E., Project for a mobile theatre. Architectural Design, 12, p. 570, 1961.

[2] Escrig, F., Expandable space frame structures. Proceedings of the 3rd International Conference on Space Structures, ed H. Nooshin, Elsevier Science Publishers: London, pp. 845–850, 1984.

[3] Escrig, F., Expendable space structures. International Journal of Space Structures, 1(2), pp. 79–91, 1985.

[4] Escrig, F. & Valcarcel, J., Great size umbrellas with expandable bar structures. Pro-ceedings of the 1st International Conference on Lightweight Structures in Architecture, University of New South Gales: Sydney, pp. 676–681, 1986.

[5] Escrig, F. & Valcarcel, J., Curved expandable space grids. Proceedings of the Interna-tional Conference on the Design and Construction of Non-Conventional Structures, Edinburg, Civil Comp Press, pp. 157–166, 1987. http://dx.doi.org/10.4203/ccp.7.18.1

[6] Hoberman, C., Reversibly expandable doubly-curved truss structure, US Patent 4.942.700, 1990.

[7] You, Z. & Pellegrino, S., Expandable bar structures. International Journal of Solid Structures, 34(15), pp. 1825–1847, 1997. http://dx.doi.org/10.1016/S0020-7683(96)00125-4

[8] Hoberman, C., Mechanical invention through computation – expanding structures – 2D, MIT Class 6.S080 online course material, available at: http://courses.csail.mit.edu/6. S080/lectures/02_all.pdf

[9] Maden, F., Korkmaz, K. & Akgün, Y., A review of planar scissor structural mecha-nisms: geometric principles and design methods. Architectural Science Review, 54(3), pp. 246–257, 2011.\ http://dx.doi.org/10.1080/00038628.2011.590054

[10] Jensen, F., Concepts for retractable roof structures, PhD Thesis, University of Cam-bridge, 2004.