Abstract
A discrete formulation is presented for the analysis of suspension bridges. The resulting equations of equilibrium, which are nonlinear in the displacement terms, are solved by a Newton-Raphson procedure. The linear solution for each cycle of the Newton-Raphson method is treated as a set of linear initial-value problems. Numerical difficulties require that a suppression scheme be employed within each linearization. Numerical problems are presented for both stiffened and unstiffened structures and the results are compared with the findings of other investigators. The effects of hanger spacing on the results, especially in the end regions of the stiffening truss, are studied.
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