Estimation of Reinforcing Bars by Using Real GA with Discrete Chromosomes

摘要

This paper discusses estimation of reinforcing bars by using Real-coded GA with discrete chromosomes. A chromosome consists of some genes which are position, depth, and radius of reinforcing bars. As the calculation of fitness is used FDTD method, each gene is divided according to the sell size of FDTD. Then the crossing-over and the mutation are calculated by the same method to the real number gene, the obtained gene is discretized again. Numerous chromosomes of real number arise during evolution, but many of them are same discrete chromosome. So the discretized chromosome is numbered and the chromosome and the value of the fitness are memorized. Because the fitness to the same discrete chromosome is not necessary to calculate, the computing time for exploration can be greatly shortened. Also the validity of the estimated result is discussed using the average, the standard deviation and the deviation.