Analysis of Cable-Stiffened Space Structures

by Nicholas F. Morris, (M.ASCE), Assoc. Prof.; Dept. of Civ. Engrg., Manhattan Coll., Bronx, N.Y.,

Serial Information: Journal of the Structural Division, 1976, Vol. 102, Issue 3, Pg. 501-513

Document Type: Journal Paper


A method is presented for computing the nonlinear dynamic response of three-dimensional cable-stiffened structures. The nonlinear dynamic equations are reduced to a smaller system by expanding the unknown variables as a series of mode shapes which were found by an eigenvalue analysis of the linear dynamic equations. The method is applied to a single plane cable-stayed bridge. Results are obtained for linear and nonlinear dynamic response due to earthquake, vortex excitation, and wind gusting. It is confirmed that a linear analysis is suitable for cable-stayed bridges.

Subject Headings: Cables | Cable stayed bridges | Linear analysis | Nonlinear response | Space structures | Space frames | Structural analysis | Nonlinear analysis

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