Buckling Behavior of Square‐and‐Diagonal Double‐Layer Grid
Publication: Journal of Structural Engineering
Volume 120, Issue 4
Abstract
Square‐and‐diagonal double‐layer grids mean both “square‐on‐diagonal” and “diagonal‐on‐square” grids. When the grids are pin‐jointed, they may give rise to unstable higher‐order deformations corresponding to the unstable mode due to the relative rotations of pyramidal units. In practical design, the unstable deformations are often restrained by boundary members and so forth. The buckling behavior and the effects of boundary members are experimentally and theoretically studied in this paper for grids constructed by a bolted jointing system. In the analysis, a member model consisting of a uniform member, rigid end parts and rotational springs is used. As a result, it is found that the unstable deformations appear in the buckling mode of diagonal‐on‐square grids, but do not clearly appear in the case of square‐on‐diagonal grids. The boundary members are effective for the buckling load of diagonal‐on‐square grids, but not effective for square‐on‐diagonal grids. The postbuckling behaviors of the two grids are clearly shown experimentally.
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References
1.
Kato, B., Takanashi, K., Tsushima, Y., and Hirata, Y. (1967). “The analysis of a space truss composed of square pyramid units.” Space Structures, R. M. Davis, ed., Blackwell Scientific Publishers, Oxford, England, 201–212.
2.
Saka, T., and Heki, K. (1984). “The effect of joints on the strength of space trusses.” 3rd Int. Conf. on Space Struct., H. Nooshin, ed., Elsevier Applied Science Publishers Ltd., London, England, 417–422.
3.
Saka, T., and Taniguchi, Y. (1991). “Post‐buckling behavior of square‐and‐diagonal double‐layer grid.” Proc., IASS Symp., Vol. 3, Kunstakademiets Forlag Arkitektskolen, Denmark, 199–206.
4.
Saka, T., and Taniguchi, Y. (1992a). “Effective strength of square‐and‐diagonal double‐layer grid.” J. Struct. Engrg., ASCE, 118(1), 52–72.
5.
Saka, T., and Taniguchi, Y. (1992b). “Effect of boundary beams on the elastic buckling load of square‐and‐diagonal double‐layer grids.” Proceedings of the IASS‐CSCE International Congress, Vol. 2, Canadian Society for Civil Engineering, Toronto, Canada, 244–255.
6.
Schmidt, L. C., Morgan, P. R., O'Meagher, A. J., and Cogan, K. (1980). “Ultimate load behaviours of a full‐scale space truss.” Proceeding of Institute Civil Engineers, Part 2, U.K., 97–109.
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Published In
Journal of Structural Engineering
Volume 120 • Issue 4 • April 1994
Pages: 1088 - 1102
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Jan 24, 1992
Published online: Apr 1, 1994
Published in print: Apr 1994
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