Double‐Layer Tensegrity Grids: Static Load Response. Part II: Experimental Study
Publication: Journal of Structural Engineering
Volume 117, Issue 6
Abstract
Tensegrity structures are freestanding prestressed cable networks in which the cables are prestressed against a discontinuous system of bars. In double‐layer tensegrity grids (DLTGs), the bars are confined between two parallel layers of cables. This is the second paper in a two‐part analytical and experimental study of a type of DLTG. The first part, presenting results of a first‐order linear analytical model, indicates that these structures possess low stiffness and low bar force efficiency. The experimental investigation of a small‐scale model indicates that actual response is significantly nonlinear and that both stiffness and bar force efficiency are higher than indicated by the linear model. Member forces due to the applied load are generally higher than the linear model indicates. A nonlinear analytical model is generally in good agreement with the results. The concept, consisting of independent prismatic units, possesses a high degree of structural redundancy. Load‐bearing capacity is practically unaffected by the loss of a member.
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References
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Argyris, J. H., and Scharpf, D. W. (1972). “Large deflection analysis of prestressed networks.” J. Struct. Div., ASCE, 106(3), 633–654.
2.
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Hanaor, A., and Liao, M. K. (1991). “Double‐layer tensegrity grids: Static load response. I: Analytical study.” J. Struct. Engrg., ASCE, 117(6), 1660–1674.
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Copyright © 1991 ASCE.
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Published online: Jun 1, 1991
Published in print: Jun 1991
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