Abstract

Recently, maintenance of structures has become more and more important in many fields. A structure follows a life-cycle that consists of planning, design, construction, maintenance and replacement. In order to establish a rational and economic maintenance program, the concept of Life-Cycle Cost (LCC) has gained much more attention in engineering fields. In this paper, an attempt is made to develop a practical method based upon the adaptive genetic algorithm with Variable-Length chromosome (VL-GA) for an optimal maintenance planning of many concrete bridges based upon life-cycle cost. A numerical example is presented to demonstrate the applicability and efficiency of the proposed method.

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