基于赋权关联度法的桥梁加固方案优选研究.pdfVIP

第 13卷 第 7 期 铁道科学与工程学报 Volume 13 Number 7 2016年 7 月 Journal of Railway Science an Engineering July 2016 基于赋权关联度法的桥梁加固 方案优选研究 姜禹，郝伟 (兰州交通大学土木工程学院，甘肃兰州730070) 摘 要 :桥梁加固是提高在役桥梁使用寿命的主要手段，也是促进桥梁建设可持续发展的重要环节，如何合理选择经济可 靠的加固方案是桥梁加固工程的一个重要内容。根据多目标决策问题的思想，提出基于赋权关联度法进行方案优选，首先 #4 居加固要求建立综合评价指标体系，然后采用熵值法计算各指标权重、赋 权 关 联 度法计算各备选方案的关联度，优选过 程客观、合 理 ，最后应用该方法对实例进行分析，阐述其具体运用过程，验 证 了 其 实 用 性 和 合 理 性 ，为桥梁加固方案优选提 供一种行之有效的新方法，为方案决策者提供科学合理的决策依据。 关键词 ：桥梁加固；方案优选；熵值法;赋权关联度 中图分类号:U445.72 文献标志码 ：A 文章编号= 1672-7029(2016) 07-1317-06 Research on bridge reinforcement scheme optimization based on empowerment relational degree JIANG Yu, HAO Wei ( School of Civil Engineering, Lanzhou Jiaotong University, LanZhou 730070, China) Abstract ：Bridge reinforcement is the main means of improving the service life of existing bridges. It is also important to promote the sustainable development of bridge construction. How to choose economic and reliable reinforcement scheme scientifically is still an important element in bridge reinforcement engineering. According to the goal of multi-objective de­ cision making, empowerment relational degree method was proposed for scheme optimization. Firstly, a comprehensive in­ dex system was established according to the reinforce calls. Then the entropy method was used to calculate weight of index and use empowerment relational degree method to calculate relatioal degree of alternative scheme. The optimization process was made more objective and reasonable. Finally, the application process of this multi-objective decision-making met