Abstract
In the construction of cable-stayed bridges, it is important to adjust the cable tension to the design values. In practice, the adjustment is performed 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 compution time. Introducing GA, it is possible to obtain the minimal number of cables requiring the adjustment as well as the practical combinations of shim plates. A numerical example is presented to demonstrate the efficiency and applicability of the method developed here.
