Double Chords as an Alternative in Tubular Trusses
Publication: Journal of Structural Engineering
Volume 112, Issue 12
Abstract
In many applications for which planar tubular steel trusses are considered appropriate, chords consisting of double rectangular hollow sections (RHS) have several advantages over their single‐chord counterparts. For unequal‐width K‐ and T‐type connections gapped between branch members, it is shown that the double‐chord. configuration has frequently twice the strength, or more, of equivalent single‐chord joints. From the standpoint of localized deformation, much stiffer joints are possible with double‐chord RHS truss systems. Typical design examples of Vierendeel and Warren trusses demonstrate the structural superiority of double chords compared with their single‐chord analogues for the spans examined. Economic benefits are also likely to be realized with the design concept proposed.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Chidiac, M., and Korol, R. M., “Rectangular Hollow Section Double‐Chord T‐Joints,” Journal of the Structural Division, ASCE, Vol. 105, No. ST8, Aug., 1979, pp. 1717–1721.
2.
Korol, R. M., El‐Zanaty, M., and Brady, F. J., “Unequal Width Connections of Square Hollow Sections in Vierendeel Trusses,” Canadian Journal of Civil Engineering, Vol. 4, No. 2, 1977, pp. 190–201.
3.
Korol, R. M., and Chidiac, M. A., “K‐Joints of Double‐Chord Square Hollow Sections,” Canadian Journal of Civil Engineering, Vol. 7, No. 3, 1980, pp. 523–539.
4.
Korol, R. M., Mirza, F. A., and Chiu, E. C., “An Experimental Investigation of Double Chord HSS Trusses,” Canadian Journal of Civil Engineering, Vol. 10, No. 2, 1983, pp. 248–261.
5.
Korol, R. M., Mirza, F. A., and Chiu, E. C., “Predicting the Behaviour of HSS Double Chord Trusses—A Comparison with Test Results,” Canadian Journal of Civil Engineering, Vol. 10, No. 2, 1983, pp. 261–270.
6.
Korol, R. M., and Mitri, H. S., “Strength Analysis of RHS Double Chord Joints with Separated Chords,” Canadian Journal of Civil Engineering, Vol. 12, No. 2, 1985, pp. 370–381.
7.
Korol, R. M., Rutenberg, A. V., and Bagnariol, D., “On Primary and Secondary Stresses in Triangulated Trusses,” Journal of Constructional Steel Research, Vol. 6, No. 2, 1986, pp. 123–142.
8.
Mirza, F. A., Shehata, A. A., and Korol, R. M., “Modelling of Double Chord Rectangular Hollow Section T‐Joints by Finite Element Method,” Computers and Structures, Vol. 15, No. 2, 1982, pp. 123–129.
9.
Mouty, J., “Theoretical Prediction of Welded Joint Strength,” Proceedings, International Symposium on Hollow Structural Sections, Toronto, Ontario, 1977.
10.
Packer, J. A., Birkemoe, P. C., and Tucker, W. J., “Canadian Implementation of CIDECT Monograph No. 6,” CIDECT Report No. 5AJ‐84/9‐E, July, 1984.
11.
Shehata, A. A., “Elasto‐Plastic Modelling of RHS T‐Joints,” thesis presented to McMaster University, at Hamilton, Ontario, Canada, in 1983, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
12.
Stelco Inc., Hollow Structural Sections—Design Manual for Connections, 2nd ed., Stelco Inc., Hamilton, Canada, Sept., 1981.
13.
Structural Stability Research Council, Guide to Stability Design Criteria for Metal Structures, 3rd ed., John Wiley & Sons, New York, N.Y., 1976.
14.
Wardenier, J., Hollow Section Joints, Delft University Press, Delft, The Netherlands, 1982.
Information & Authors
Information
Published In
Copyright
Copyright © 1986 ASCE.
History
Published online: Dec 1, 1986
Published in print: Dec 1986
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.