Study on Shape Formation of Post-Tensioned and Shaped Hypar Space Truss

摘要:

文章预览

Shape formation of post-tensioned and shaped hypar space truss is presented in this paper, the test space truss can be deformed into saddle shape by tensioning positive diagonal bottom layer strand. Nonlinear finite element analysis is applied in shape formation of space truss model. Based on both geometry and material nonlinearity, new FEM refering ‘tube to tube’ contact, is employed. Connector elements are used to simulate the bolt connection of the top joint, and the end of web. The results show that new method is relatively much more accurate than the previous way for the shaped size, and the theoretical values are consistent with experimental ones in stress and internal force distribution trend although the former ones are smaller, for FE model could not consider diagonal lower chord joining the structural system during shape formation.

信息:

期刊:

编辑:

Chaohe Chen, Yong Huang and Guangfan Li

页数:

1262-1266

DOI:

10.4028/www.scientific.net/AMR.243-249.1262

引用:

D. Z. Chen et al., "Study on Shape Formation of Post-Tensioned and Shaped Hypar Space Truss", Advanced Materials Research, Vols. 243-249, pp. 1262-1266, 2011

上线时间:

May 2011

输出:

价格:

$35.00

[1] G. Dahdashti and L.C. Schmidt: Hypar Space Trusses Formed by means of Post-tensioning, International conference on lightweight structures in civil engineerings, Warsaw, Poland, Vol. 3 (1995), p.629.

[2] Hewen. Li and L.C. Schmidt: Post-tensioned and Shaped Hypar Space Trusses, Journal of Structural Engineering , ASCE, 123: 2, (1997), p.130.

DOI: 10.1061/(asce)0733-9445(1997)123:2(130)

[3] C.R. Calladine: Buckminster Fuller's tensegrity structures and Clerk Maxwell's rule for the construction of stiff frames, Int. J. Solids Struct., 14: 3, (1978), p.161.

DOI: 10.1016/0020-7683(78)90052-5

[4] Hewen. Li: Shape Formation of Space Trusses, Department of Civil & Mining Engineering, University of Wollongong, Australia, Ph. D thesis, (1997).

[5] Dongzhao. Chen: Experimental Study on Shape Formation and Vertical Ultimate Load Capacity of Post-tensioned and Shaped Hypar Space Truss, Department of Civil Engineering, Xi'an University of Archtecture & Technoloy, China, Ph. D thesis (in Chinese), (2005).

[6] Jiping. Hao and Dongzhao. Chen: Experimental Study on Shape Formation of Post-tensioned and Shaped Hypar Space Truss, Spatial Structure (in Chinese), Vol. 6, Hangzhou, China, (2006), p.24.

[7] ABAQUS Theory Manual, ABAQUS, Inc., (2003).

[8] ABAQUS Analysis User's Manual, ABAQUS, Inc., (2003).

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