Postelastic Analysis of Cable Trusses
Publication: Journal of Structural Engineering
Volume 141, Issue 10
Abstract
In this paper, novel geometrically nonlinear analytical solutions (NASs) and linear analytical solutions (LASs) for the postelastic response analysis of biconvex and biconcave prestressed suspension cable trusses subjected to a uniformly distributed load are presented. The derived analytical method provides a straightforward determination of the intensity of vertical uniformly distributed loads applied over the entire span of a structure, as well as the accompanying forces and vertical deflections corresponding to the postelastic behavior of cable trusses. In this solution, the direct use of experimental data, such as the actual stress-strain properties of high-strength steel cables, is implemented. Resultant forms of the deflection and cable equations are modified because of the effects of geometrically nonlinear truss behavior in the postelastic range that need to be incorporated. The application of the described approaches and derived equations is illustrated by numerical examples. Resultant responses (forces and deflections) of the biconcave cable truss in the postelastic range obtained by the present geometrically nonlinear and linear analytical solution are compared with those obtained by the nonlinear FEM.
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Acknowledgments
The research reported in this paper is part of Research Project No. 1/0321/12, partially founded by the Scientific Grant Agency of the Ministry of Education of the Slovak Republic and the Slovak Academy of Sciences. The research reported in this paper has been carried out within the project Center of Excellent Integrated Research for Progressive Building Structures, Materials, and Technologies, supported by European Union structural funds.
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Published In
Journal of Structural Engineering
Volume 141 • Issue 10 • October 2015
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Jan 5, 2014
Accepted: Nov 14, 2014
Published online: Jan 6, 2015
Discussion open until: Jun 6, 2015
Published in print: Oct 1, 2015
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