In order to maintain the safety of cable suspended bridges during erection, it is important to control the bridge configuration, i.e., the inclination of tower and the camber of girder, by adjusting the cable tensions to the design values. In practice, the adjustment is preformed by adding or removing shim plates. in this paper, an attempt is made to apply Fuzzy Logic (FL) and Genetic Algorithm (GA) in order to obtain a practical combination of shim plates. GA is useful for solving the combinatorial problems, because it can deal with discrete design variables and indifferential functions. FL is employed to improve the convergency and to reduce the computation time. Introducing GA, it is possible to obtain the minimal number of cables requiring and adjustment as well as the practical combination of shim plates. Several numerical examples are presented to demonstrate the efficiency and applicability of the mehtod proposed here.
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