Evaluation Method of Concrete Security Based on RBF-FCM-ROLS ZHONG Luo,JIANG Qiong,YUAN Jing-ling,TONG Qi-wei,ZHANG Kai-song (School of Computer Science and Technology, Wuhan University of Technology, Wuhan 430070,China)The method based on RBF-FCM-ROLS was proposed. Firstly, the FCM algorithm is used to select the centers of RBFNN. Secondly the ROLS algorithm is used to train RBFNN. At last, the effective centers of RBFNN can be obtained by adopting backward selection algorithm. The satisfactory results are achieved by using this algorithm in the expert system of concrete safety evaluation and it illustrated that this method is effective and adaptive. Finally, the evaluation data, which are calculated by training RBF and BP respectively are showed and it proved that RBF and its learning algorithm, are better than that of BP.RBF neural network; expert system evaluation; ROLS algorithm; the fussy C-mean clustering