摘要
将物元分析理论引入层次分析法 ,建立了在用钢筋混凝土简支梁桥结构耐久性损伤、安全性和适用性三方面包括子指标层、指标层、项目层和目标层的多层次评估模型。结合专家经验和研究成果 ,将子指标和指标的评估分级标准量化 ;为考虑不同损伤程度的子指标和指标对评估结果的不同贡献 ,采用变权即修正权重进行评估 ;通过构造关联函数 ,确定各层次中各元素对各评估等级的关联度 ,通过逐层次综合评估 ,得到结构耐久性损伤、安全性和适用性对各评估等级的关联度。作为实例 。
By introducing the matter elemnt theory into AHP method, a multi?level evaluation model for existing simple supported beam type RC bridge structures is established. The model is composed of three components, which are durability deterioration,safety and serviceability. Each component has sub?index level, index level, item level and goal level. Taking expertsexperiences and research achievements into account, rating standards of sub?indices and indices are quantified. Adaptable weight is adopted to reflect the contribution of different degree of durability deterioration of sub?index items and index items to the evaluation result. By constructing an association function, the association degree of each element in the multi?level model to each rate is thus determined, evaluating synthetically level by level, the association degrees of durability deterioration, safety and serviceability to each rate are finally determined. As an example, the old Majiapu Bridge is evaluated in this paper.
出处
《土木工程学报》
EI
CSCD
北大核心
2002年第2期97-102,共6页
China Civil Engineering Journal
基金
北京市科委资助项目 (952 630 1 0 2 )。
关键词
可靠性
钢筋混凝土
简支梁桥
综合评估方法
simple supported beam gype RC bridge in service, present status of reliability, adaptable weight, association degree, synthesized evaluation
