Prestressed Lattice Frames with Intersecting and Offset Diagonals
Publication: Journal of Structural Engineering
Volume 116, Issue 7
Abstract
Prestressed lattice structures are structures in which certain components are pretensioned in order to improve the performance of the structure. Prestressing the diagonals of lattice frames can increase the lateral stiffness and load‐carrying capacity by increasing the rotational restraint at the joints. Thus, the objective of this research was to determine the effect of prestressing the diagonals on the buckling load of lattice frames with intersecting and offset diagonals. A total of seven tests were conducted on two‐dimensional, single‐bay, three‐story frames with nonprestressed and prestressed diagonals and with intersecting and offset diagonals. A theoretical study of the frames was also conducted. It was found that prestressing the diagonals in frames with intersecting diagonals did not increase the load‐carrying capacity. Offsetting the diagonals on the crossarm or on the verticals increased the load‐carrying capacity over that obtained for similar frames that were not prestressed.
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References
1.
Bergan, P. G., et al., (1978). “Solution techniques for nonlinear finite element problems.” Int. J. Numer. Methods Engrg., 12, 1677–1696.
2.
Chamberlain, D. A. (1957). “Prestressed wind bracing in Queen Elizabeth Hotel.” Civ. Engrg., ASCE, 45, 544–548.
3.
Ellis, J. S. (1980). “Prestressed lattice beam‐columns with offset diagonals.” Can. J. Civ. Engrg., 7(4), 573–587.
4.
Hafez, H. H., Temple, M. C., and Ellis, J. S. (1979). “Pretensioning of single‐crossarm stayed columns.” J. Struct. Div., ASCE, 105(2), 359–375.
5.
Howson, W. P., and Williams, F. W. (1980). “A parametric study of the initial buckling of stayed columns.” Proc. Inst. Civ. Engrs., Part 2, 69, 261–279.
6.
Mohan, A. (1981). “Diagonally pretensioned lattice frame,” thesis presented to the University of Windsor, at Windsor, Ontario, Canada, in partial fulfillment of the requirements for the degree of Master of Applied Science.
7.
Prakash, M. V. (1986). “Behaviour of prestressed lattice structures,” thesis presented to the University of Windsor, at Windsor, Ontario, Canada, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
8.
Temple, M. C., Prakash, M. V., and Ellis, J. S. (1984). “Failure criteria for stayed columns.” J. Struct. Engrg., ASCE, 110(11), 2677–2689.
9.
Williams, F. W., and Howson, W. P. (1978). “Concise buckling analysis of stayed columns.” Int. J. Mech. Sci., 20, 299–313.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 116 • Issue 7 • July 1990
Pages: 1923 - 1941
Copyright
Copyright © 1990 ASCE.
History
Published online: Jul 1, 1990
Published in print: Jul 1990
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