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Title: Innovative use of star prism (SP) and di-pyramid (DP) for spatial structures
Authors: Liew, J.Y.R. 
Lee, B.H.
Wang, B.B. 
Keywords: Cable-strut system
Double-layer grids
Reciprocal prism
Space frames
Spatial structures
Star prism
Tensioned structures
Issue Date: Mar-2003
Citation: Liew, J.Y.R., Lee, B.H., Wang, B.B. (2003-03). Innovative use of star prism (SP) and di-pyramid (DP) for spatial structures. Journal of Constructional Steel Research 59 (3) : 335-357. ScholarBank@NUS Repository.
Abstract: Cable-strut structures are constructed from a system of short struts interconnected by hightensile cables, providing lightweight structures with large-span capability. In this paper, two novel cable-strut systems constructed using star prism (SP) and di-pyramid (DP) grids are proposed. The main innovation of these systems is to extend cable net structures into freestanding grids. The innovation leads to the invention of a number of new structural forms and a wide variety of ornamental forms. Investigation work that led to the discovery of these two systems is presented. Studies on weight efficiency are conducted on square-on-square space grid structures using various modules such as reciprocal prism (RP), SP and DP grids. The SP and DP systems show promise to have lower weight-to-strength ratios than conventional space truss systems. They are also structurally more efficient for long-span spatial applications. Finally, innovative joint details are proposed considering the ease of fabrication and erection of spatial structures. © 2002 Elsevier Science Ltd. All rights reserved.
Source Title: Journal of Constructional Steel Research
ISSN: 0143974X
DOI: 10.1016/S0143-974X(02)00037-8
Appears in Collections:Staff Publications

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