基于物元分析的桥梁加固效果评价

Evaluation of Bridge Reinforcement Based on Matter- element analysis

通过分析影响桥梁加固效果的主要因素,选取加固效果的合理可行性、施工实施情况、养护资金使用、施工安全性、通车运营情况等10项指标,运用熵权法计算各指标权重,将桥梁加固效果划分为"优、良、中、差"四个等级,通过确定物元对象,建立经典域、节域物元矩阵,计算各指标的综合关联隶属度,得到桥梁加固效果的评价等级,提出了基于物元分析的桥梁加固效果评价模型。以某实腹式圬工拱桥为例,计算结果表明,基于物元分析的桥梁加固效果评价具有适用性,能够为评价鉴定桥梁加固项目的优劣提供参考。

The paper analyzed the main factors influencing the reinforcement effect, and selected 10 indicators of the reasonable feasibility of the reinforcement effect, the construction implementation, the use of maintenance funds, the construction safety, the operation status, and calculated the index weight by using the entropy method, and divided the bridge reinforcement effect into four grades of excellent, good, medium and poor,by determining the element object, establishing the classical domains and the matter - element matrix, calculating the comprehensive correlative membership of each index, and obtained the order of evaluation of the bridgere inforcement effect, and established the evaluation model of the bridge reinforcement effect based on the matter element analysis. Taking a spandrel - filled masonry arch bridge as example, the results show that the evaluation of the bridge reinforcement effect based on matter element analysis is applicable, and can provide a reference for the evaluation of the quality of the bridge reinforcement project.