Research Article
Dec 1975
Nonlinear Analysis of Reticulated Space Trusses
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VIEW THE REPLYAuthors: Dharapuram S. Jagannathan, Howard I. Epstein, M.ASCE, and Paul Christiano, M.ASCEAuthor Affiliations
Publication: Journal of the Structural Division
Volume 101, Issue 12
Abstract
Most existing methods of analyzing reticulated structures are either approximate or are applicable to only special cases. The present investigation studies the geometric nonlinear behavior and associated snap-through buckling of reticulated structures. The development is based on a large displacement finite element formulation, using bar elements, but may be expanded to include geometrically nonlinear behavior of more general elements. The formulation may be used to analyze space trusses that might undergo both large displacements and large member rotations. It is shown that upper and lower bounds are not always reliable, and that an approximate nonlinear analysis may be used to accurately determine the snap-through loads of large structures. Examples are presented to illustrate differences in results obtained through linear and nonlinear formulations.
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Published In
Journal of the Structural Division
Volume 101 • Issue 12 • December 1975
Pages: 2641 - 2658
Copyright
© 1975 American Society of Civil Engineers.
History
Published in print: Dec 1975
Published online: Feb 1, 2021
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Affiliations
Dharapuram S. Jagannathan
Sr. Engr., Bechtel Power Corp., Los Angeles, Calif.
Howard I. Epstein, M.ASCE
Asst. Prof., Dept. of Civ. and Mineral Engrg., Univ. of Minnesota, Minneapolis, Minn.
Paul Christiano, M.ASCE
Assoc. Prof., Dept. of Civ. Engrg., Carnegie-Mellon Univ., Pittsburgh, Pa.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.