Vol. 4, No. 4, pp. 323-340 (2008)
STRUCTURAL DESIGN OF A PRACTICAL SUSPENDOME
Zhi-Hong Zhang 1,*, Qing-Shuai Cao 1, Shi-Lin Dong 2 and Xue-Yi Fu 1
1* Ph. D., China Construction (Shenzhen) Design International,
NO.138, Kangjian Road, Shanghai, China, 200235
* (Corresponding author: Email: This email address is being protected from spambots. You need JavaScript enabled to view it.)
2 Professor, Space Structure Research Center, Zhejiang University,
Hangzhou, Zhejiang Province, China, 310027
Received: 8 October 2007; Revised: 7 December 2007; Accepted: 10 December 2007
DOI: 10.18057/IJASC.2008.4.4.4
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ABSTRACT
Structural design of a practical spherical suspendome with the diameter of 122m was carried out in China Construction (Shenzhen) Design International (CCDI) in 2006. The suspendome structure is a new type of large-span spatial structure which is widely used in the sports buildings. Several suspendome structures have been constructed as the structural roof in the sports arena in China in recent years. As is known to all, prestresses in the cable-strut system are crucial to the tensegric system, and the determination of prestress level and distribution is somewhat complicated. However, no provisions has been provided by current chinese design codes of practice for the suspendome structure. This paper gives out the detailed prestress design procedure for the practical sports arena which is to be built in Jinan City, China. General purpose finite element package ANSYS is utilized for the analyses. The self-internal-force mode and the prestress level ratio among three ring cables are investigated to determine the prestress in the cable. Linear static analyses are then carried out to validate the prestress efficiency. It has been shown that prestress defined by this way has much influence on the deformation and the internal force of the upper reticulated shell structure. The linear elastic buckling and the geometrically nonlinear stability analysis are also presented. The snap-through phenomenon of the structure is investigated to determine the critical load carrying capacity of stability. The infulence of live load distribution patterns and imperfections on suspendome is addressed in details. The results from the studies can not only be refered for direct design use, and also for the design of similar hybrid structures.
KEYWORDS
Space structure, suspendome, tensegric system, prestress, sports building, buckling, eigenmode, geometrically nonlinearity, imperfection
REFERENCES
[1] Liu, X.L., “Modern Spatial Structures”, Tianjin University Press, 2003 (in Chinese).
[2] Dong, S.L., Luo, Y.Z. and Zhao, Y., “Analysis, Design and Construction of New Spatial Structure”, China Communication Press, 2007 (in Chinese).
[3] Zhang, Z.H., “Theoretical Research on Large-Span Tensile Spatial Structures Composed of Cables, Bars and Beams”, PhD Thesis, Space Structure Research Center, Depart of Civil Engineering, Zhe Jiang University, 2003 (in Chinese).
[4] Zhang, M.S., “Theoretical Research on Suspendome”, PhD Thesis, Space Structure Research Center, Depart of Civil Engineering, Zhe Jiang University, 2004 (in Chinese).
[5] Kang, W.J., Chen, Z.H., Lam, H.F. and Zuo, C.R., “Analysis and Design of the General and Outmost-ring Stiffened Suspendome Structures”, Engineering Structures, 2003, Vol. 25, No. 13, pp.1685-1695.
[6] Kitipornchai, S., Kang, W.J., Lam, H.F. and Albermani, F., “Factors Affecting the Design and Construction of Lamella Suspendome Systems”, Journal of Constructional Steel Research, 2005, Vol. 61, pp. 764-785.
[7] Zhang, M.S., Dong, S.L. and Zhang, Z.H., “Distribution of Initial Prestress and Stability Analysis of Suspendome”, Spatial Structures, Vol. 10, No. 2, pp. 8-12 (in Chinese).
[8] Pellegrino, S. and Calladine, C.R., “Matrix Analysis of Statically and Kinematically Indeterminate Frameworks”, International Journal of Solids Structures, 1986, Vol. 22, No. 40, pp. 409-428.
[9] Calladine, C.R. and Pellegrino, S., “First-order Infinitesimal Mechanisms”, International Journal of Solids Structures, 1991, Vol. 27, No. 4, pp. 505-514.
[10] Pellegrino, S., “Analysis of Prestressed Mechanisms [J]. Int. J. Solids Structures, 1990, Vol. 26, No. 12, pp. 1329-1350.
[11] Pellegrino, S., “Structural Computations with the Singular Value Decomposition of the Equilibrium Matrix”, International Journal of Solids Structures, 1993, Vol. 30, No. 2, pp. 3025-3036.
[12] GB50017-2003, “Code for Design of Steel Structures”, Chinese Planning Press, Beijing (in Chinese).
[13] Shen, S.Z., “Design of Cable Structures”, China Architecture and Building Press, Beijing, 2nd Edition, 2006 (in Chinese).
[14] GB50009-2001, Load Code for the Design of Building Structures”, Chinese Planning Press, Beijing (in Chinese).
[15] GB JGJ61-2003, “Technical Specification for Latticed Shells”, Chinese Planning Press, Beijing (in Chinese).