基于变异系数法和集对分析的桥梁设计多属性评价模型  

Multiple Attribute Evaluation Model for Bridge Design Based on Variation Coefficient Method and Set Pair Analysis

作　　者：齐秀廷[1] 姚永春 

机构地区：[1]山西交通职业技术学院公路系,山西太原030031 [2]山西路桥建设集团,山西太原030031

出　　处：《科技通报》2016年第2期189-192,共4页Bulletin of Science and Technology

摘　　要：为了评价桥梁设计方案的优劣,建立桥梁设计方案多属性评价模型和评价等级标准。该模型引入集对分析法对桥梁设计方案进行定量分析,选取7个评价指标,为避免主观赋权法受决策者主观意志影响较大的缺点,采用变异系数法确定指标权重,充分保证了数据的客观性,提高了指标权重的科学性。运用该评价模型对某大桥4个设计方案进行验证,计算出每个方案所属等级和优劣排序:X1属于III级,X2属于I级,X3属于IV级,X4属于III级,X2>X4>X1>X3,因此确定X2为最优方案。In order to evaluate the quality of bridge design scheme, the multiple attribute evaluation model of bridge design scheme and rating standard were established. The quality of bridge design scheme was quantitatively analyzed by introduction of set pair analysis, selection of seven evaluation indicators and the weights of evaluation indexes were determined by using variation coefficient method to avoid shortcoming that indicators weight were greatly influenced by deciders. The method ensured the objectivity of the data, improved the scientificity of indexs weight. This model was applied to evaluate 4 schemes of bridge design. The results showed X1 belonged to grade Ⅲ, X2 belonged to grade Ⅰ, X3 belonged to grade Ⅳ, X4 belonged to grade Ⅲ, and the schemes rank were X2>X4>X1>X3. So X2 was the optimal.

关 键 词：桥梁设计 多属性评价模型 变异系数法 集对分析 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]