【作者】 张新占；

【导师】 杨炳成；

【作者基本信息】 长安大学 ， 道路与铁道工程， 2004， 博士

【摘要】 本文在分析研究桥梁管理系统理论的基础上，建立了项目级和网级管理系统的模块结构。提出了将耐久性作为评价桥梁使用功能的评价指标，并采用基于模糊集合论和层次分析法(AHP法)的多级模糊综合评价方法，为了使评价过程自动化，建立了完整、系统的隶属函数体系。探索了一种根据桥梁构件受力特点和定期检查结果，简便、快速评估桥梁安全性的方法。提出了从行车条件、通过能力和与周围环境协调性三方面评价桥梁适应性的方法。分别利用灰色系统预测模型(GM)和人工神经网络预测模型(BP网络)对桥梁的使用功能和承载能力进行了预测，并应用最优组合预测理论，提出了组合预测模型，推导了组合预测模型的权值计算公式。运用寿命周期费用分析法进行项目决策，按桥梁技术参数排序法和使用效果优化法进行系统决策。提出了养护对策树，建立了养护对策库，为养护工作者提供了方便。开发出的系统软件灵活、方便、实用，可成为桥梁管理部门快速、高效、可靠的管理工具，并以两座不同类型的桥梁为例说明了桥梁管理系统的应用。更多还原

【Abstract】 This paper is to discuss a module structure in management system at project and network level, which is set up according to the analysis of bridge management theories. The author puts forward that the durability should be the criteria of the review of the function of bridges. And multilevel fuzzy comprehensive ways are also employed as reviewing ways on the basis of fuzzy set theory and analytic hierarchy process (AHP). To make an automatic review system, a safe and systematical subordinate function has been established. So a simple and quick way has been found from the bridge sections under forces and the results of regular examinations. It also suggests the approach to reviewing bridge suitability considering these three aspects: conditions of passing vehicles, capabilities, and the harmonic surrounding environment. It employs the fuzzy system and artificial neural network respectively to predict the functions and the bearing capacities of bridges. Moreover, with the predicting theory of the optimal mix, a mix predicting model has been made, and the weight value formula of predicting has been produced. And the life cycle cost analysis is used to make an item policy to develop a systematic countermove according to the arrangement of the technical parameters and the effect optimization. It brings convenience for the maintainers to form a maintaining countermove tree and set up a maintaining countermove bank. The developed software, which is agile, convenient, and practical, can be a quick, efficient, and reliable tool for bridge management. And it proves the practical application to the bridge management system by taking two different bridges as an example.更多还原