张  爽¹，谢 剑^1,2
(1天津大学土木工程系，天津300072; 2 天津市土木工程结构及新材料重点实验室，天津300072)

[摘要] 用改进的AHP方法确定既有建筑加固方案的权重系数，可以一次得到权重值，且不需要进行一致性检验，避免了调整判断矩阵的盲目性。通过系统聚类分析法对群决策中的专家进行了分类，并以此为依据，给各位专家赋予了一定的权重，调整了专家认识事物的不一致性，用科学的方法来确定既有建筑加固方案的优选。
[关键词] 改进的AHP方法：群决策；聚类分析；权重；既有建筑

Application of an improved AHP method in optimization of strengthening method for existing structures
Zhang Shuang¹,  Xie Jian^1,2
(1 Department of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 Tianjin Key Laboratory of Civil Engineering Structures and New Materials, Tianjin 300072, China)

Abstract: An improved Analytic Hierarchy Process (AHP) method is provided to optimize strengthening method for existing structures. The weigh of different method can be calculated by the improved AHP method without adjustment of  judge matrixes. Moreover, experts in group decision-making are classified by cluster analysis method. Based on one's class, each expert is given a certain weight, which can eliminate the inconsistency among the experts. With the improved method, strengthening method can be reasonably selected in a more scientific way.
Keywords: improved AHP method; group decision-making; cluster analysis; weight; existing structures