混凝土桥面板长期维修优化与交互式遗传算法  

Long-Term Maintenance Optimization of Concrete Bridge Deck and Interactive Genetic Algorithm

作　　者：边晶梅[1,2] 朱浮声[1] 崔可民 李纯[1] 阚亮[4] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004 [2]沈阳化工学院经济管理学院,辽宁沈阳110142 [3]中冶焦耐工程技术有限公司,辽宁鞍山114002 [4]沈阳远大铝业工程有限公司,辽宁沈阳110027

出　　处：《沈阳建筑大学学报（自然科学版）》2009年第3期511-516,共6页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家自然科学基金项目(50778115);辽宁省交通科技重点项目(0512)

摘　　要：目的研究混凝土桥面板最佳维修策略的优选问题,以利用尽可能少的维修资源,获得最好的维修效果.方法建立了混凝土桥面板长期维修策略的多目标优化模型,采用交互式遗传算法求解.通过非精确偏好信息引导遗传搜索,使种群向多个目标最佳综合性能的方向进化,最终获得满足工程需要的最优解集.引入适应度共享技术以增加种群的多样性.结果可同时获得多个满意解,增加了维修策略的选择余地.与无偏好的多目标遗传优化相比,个体的分布范围缩小一半以上,并向偏好信息所指引的方向进化和集中.最终解带有明显的倾向性,从而降低了桥面板最佳维修策略的选择难度.结论利用交互式遗传算法进行混凝土桥面板维修优化,可辅助桥梁管理部门进行维修决策,具有良好的理论意义和工程应用价值.In order to obtain the best effect utilizing with least maintenance resources as much as possible, Maintenance strategy optimization of concrete bridge decks is investigated. A multi-objective model of concrete bridge deck long-term maintenance strategy optimization is established and interactive genetic algorithm is adapted as the solving method. Interactive genetic algorithm inducts genetic searching into optimal comprehensive performances of multiple objects with inaccurate preference information, and an optimal solution satisfying engineering demand can be obtained at the end of optimization process. Fitness sharing technique is introduced to enhance population diversity. Analysis of examples indicates that a group of satisfactory solutions can be obtained at the same time through this method. Compared with multi-objective genetic algorithm without preference, individual distribution range dwindles more than a half. Individuals will evolve and concentrate toward the direction of preference information and obviously the final solutions possess tendency, which reduces the selection difficulty of optimal bridge decks maintenance strategy. Long-term maintenance optimization method of concrete bridge deck based on interactive genetic algorithm can be used as assistant decision-making means for bridge management department and it has good theoretical significance and engineering application value.

关 键 词：混凝土桥面板 交互式遗传算法 多目标优化 非精确偏好信息 适应值共享 

分 类 号：U41[交通运输工程—道路与铁道工程]