Yield Line Analysis of Cropped‐Web Warren Truss Joints
Publication: Journal of Structural Engineering
Volume 114, Issue 10
Abstract
The yield line analysis method is used to develop an expression for predicting yield strengths of joints in welded Warren‐type hollow structural section trusses with round end‐cropped webs and rectangular chords. Yield strengths computed using the expression are compared with those measured in an experimental investigation of 39 Warren‐type cropped‐web HSS truss joint specimens. Good agreement between the measured and predicted values is demonstrated. The yield strength expression is augmented, by accounting for membrane forces, to obtain an expression for predicting ultimate joint strengths. The prediction formula is calibrated to the mean of the ultimate strengths of the 39 test specimens. When used in conjunction with the appropriate LRFD resistance factor, the ultimate strength prediction formula produces a safe value for use in design.
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References
1.
Davies, G., and Roper, C. G. (1975). “Gap joints with tubular members—A yield line approach.” Build. Sci., 10, 199–205.
2.
Davies, G., and Roper, C. G. (1977). “Gap joints with tubes—A yield line modified by shear approach.” Build. Environ., 12, 31–38.
3.
Galambos, T. V., and Ravindra, M. K. (1978). “Properties of steel for use in LRFD.” J. Struct. Div., ASCE, 104(ST9), 1459–1468.
4.
Kennedy, D. J. L., and Gad Aly, M. (1980). “Limit states design of steel structures—Performance factors.” Can. J. Civ. Eng., 7, 45–77.
5.
Lau, B. L., Morris, G. A., and Pinkney, R. B. (1985). “Testing of Warren‐type cropped‐web tubular truss joints.” Proc., CSCE Annual Conference, Saskatoon, Saskatchewan.
6.
Mouty, J. (1976). “Calcul des charges ultimes des assemblages soudés de proflls creux carrés et rectangulaires.” Construction Metallique, 2, 37–58 (in French).
7.
Mouty, J. (1978). “Behavior of welded joints of square and rectangular tubular structures—A theoretical approach based on the method of yield lines.” Proc., Int. Institute of Welding Annual Assembly, Dublin, Ireland.
8.
Packer, J. A., Birkemoe, P. C., and Tucker, W. J. (1984). “Canadian implementation of CIDECT Monograph No. 6.” Dept. of Civil Engineering Publication No. 84‐04, University of Toronto, Toronto, Canada.
9.
Packer, J. A., and Davies, G. (1982). “Ultimate strength of overlapped joints in rectangular hollow section trusses.” Proc. Inst. Civ. Engrs., London, U.K., Part 2, Vol. 73, 329–350.
10.
Packer, J. A., Davies, G., and Coutie, M. G. (1980). “Yield strength of gapped joints in rectangular hollow section trusses.” Proc. Inst. Civ. Engrs., London, U.K., Part 2, Vol. 69, 995–1013.
11.
Packer, J. A., Davies, G., and Coutie, M. G. (1982). “Ultimate strength of gapped joints in RHS trusses.” J. Struct. Div., ASCE, 108(ST2), 411–431.
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Copyright © 1988 ASCE.
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Published online: Oct 1, 1988
Published in print: Oct 1988
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