Experimental Study of Behavior of New Space Truss System
Publication: Journal of Structural Engineering
Volume 122, Issue 8
Abstract
Although space trusses have been in continuous development since the 1950s, their share in the market of large-span structures is still quite small. Because of being costlier than one-way beam and framed structural alternatives, the use of space trusses has almost been restricted to applications where the trusses' pleasing appearance can justify their high cost. Attempts to address the cost concern of space trusses have resulted in truss systems that do not need node connectors for their assembly, but use continuous chord members directly joined together and with the diagonal members. This technique resulted in a considerable cost cut and was responsible for the relative success of these systems in the economic market. This paper presents a space truss system newly developed with the main objective of achieving a larger reduction in the overall cost of space trusses without compromise in the structural reliability or the common ease of construction. To achieve this goal, the new truss has a simple jointing system that requires no expensive node connectors, and a simple member splicing system that has almost no adverse effect on the truss's performance. The paper includes an introduction to the system's features and an experimental assessment of the claim that the new jointing system of the truss does not entail any compromise in its structural efficiency or reliability.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Chapman, J. C., Buhagier, D., and Dowling, P. J. (1993). “Developments in cold-formed space structures.”Proc. 3rd Int. Conf. Space Struct., Space Struct. Res. Ctr., Univ. of Surrey, U.K., 1604–1612.
2.
Codd, E. T. (1984). “Low technology space frames.”Proc. 3rd Int. Conf. Space Struct., Space Struct. Res. Ctr., Univ. of Surrey, U.K., 955–960.
3.
El-Sheikh, A. I., and McConnel, R. E. (1991). “Experimental study of non-composite and composite space trusses.”Tech. Rep., CUED/D-Struct/TR. 137, Univ. of Cambridge, Dept. of Engrg., Cambridge, U.K.
4.
El-Sheikh, A. I., and McConnel, R. E.(1993). “Experimental study of behavior of composite space trusses.”J. Struct. Engrg., ASCE, 119(3), 747–766.
5.
El-Sheikh, A. I.(1995). “Sensitivity of space trusses to member geometric imperfections.”Int. J. Space Struct., 10(2), 89–98.
6.
Hanaor, A., March, C., and Parke, A.(1989). “Modification of behavior of double-layer grids: Overview.”J. Struct. Engrg., ASCE, 115(5), 1021–1037.
7.
Levy, R., Hanaor, A., and Rizzuto, N.(1994). “Experimental investigation of prestressing in double-layer grids.”Int. J. Space Struct., 9(1), 21–26.
8.
Parke, G. A. R. (1993). “A novel soft member for space trusses.”Proc. 4th Int. Conf. Space Struct., 116–126.
9.
Schmidt, L. C. (1975). “Effects of compression chord buckling on the behavior of a simply supported space truss.”Proc. 5th Australian Conf. on the Mech. of Struct. and Mat., 457–470.
10.
Schmidt, L. C. (1976). “Member buckling characteristics and space truss behavior.”IASS World Congress on Space Enclosures, Concordia Univ., Montreal, Canada, 849–857.
11.
Schmidt, L. C., Morgan, P. R., O'Meagher, A. J., and Cogan, K.(1980). “Ultimate load behavior of a full-scale space truss.”Proc. Inst. of Civ. Engrs., London, U.K., 69(2), 97–109.
12.
Schmidt, L. C., Morgan, P. R., and Hanaor, A.(1982). “Ultimate load testing of space trusses.”J. Struct. Div., ASCE, 108(6), 1324–1335.
Information & Authors
Information
Published In
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Aug 1, 1996
Published in print: Aug 1996
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.