Vol. 19, No. 4, pp. 403-410 (2023)
CONFORMATION AND STATIC PERFORMANCE ANALYSIS OF
PENTAGONAL THREE-FOUR STRUT HYBRID OPEN-TYPE CABLE DOME
Hui Lv 1, 2, *, De-Wang Liu 1, 4, Shi-Lin Dong 2, 3 and Yan-Fen Zhong 1, 4
1 College of Civil Engineering and Architecture, Nanchang Hangkong University, Nanchang 330063, China
2 Space Structures Research Center, Zhejiang University, Hangzhou 310058, China
3 Zhejiang Provincial Key Laboratory of Space Structures, Zhejiang University, Hangzhou 310058, China
4 Nanchang Hangkong University Smart Construction Research Center, Nanchang 330063, China
*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 6 July 2023; Revised: 9 September 2023; Accepted: 12 September 2023
DOI:10.18057/IJASC.2023.19.4.9
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ABSTRACT
Traditional cable domes exhibit many defects, such as irregular grids and weak circumferential stiffness. This paper proposes a new cable dome and elaborates on the topological form of the new cable dome. Furthermore, the pre-stress state of the structure is deduced by establishing the nodal equilibrium equations. In addition, load states analysis and parametric analysis were conducted using finite element simulations in ANSYS software. The results show that the pre-stress distribution of this structure is reasonable because of the regular grids. Compared to traditional cable domes, the new design shows superior static performance and enhanced circumferential stiffness. As a result, the cables hardly slack under different load conditions. Moreover, it can improve structural stiffness by appropriately adjusting the initial pre-stress, rise-span and thickness-span ratios. Finally, recommended ranges of the above parameters are provided, offering valuable engineering design guidance.
KEYWORDS
Cable dome, Static performance, Parametric analysis, Initial pre-stress, Rise-span ratio, Thickness-span ratio
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