钢管混凝土拱桥长期监测管理决策系统研究-桥梁与隧道工程专业论文.docxVIP

摘 摘 要 钢管混凝土拱桥较强的跨越能力和便于施工的优点使得钢管混凝土拱桥日益 向大跨度方向迈进。随着跨度的增大，许多问题随之而来，其中安全性问题尤为 突出。当桥梁出现了破损，如果不及时准确的对损伤进行检测与修复，将会危及 人民群众的人身安全，造成国民经济的重大损失。随着桥梁监测技术的发展，为 桥梁建成后的养护工作提供了有利的保障。本文就以下四点展开研究工作： 1．首先对钢管混凝土结构进行受力分析，对钢管混凝土拱桥的计算原理介绍 之后，然后用实例说明计算方法的合理性，作为日后监测中所需要的基础数据。 2．介绍了钢管混凝土拱桥变形监测拱圈挠度的设备和方法，并简要地介绍了 该变形监测系统以及监测过程中需要注意事项。 3．采用专业数据库软件建立了钢管混凝土拱桥变形监测数据管理系统，并利 用Visual Basic6．0高级编程语言编写了长期监测数据处理的管理数据库应用程 序。 4．对钢管混凝土拱桥的安全评估方法做了初步的探索，对该类桥梁变形监测 提供了有益的探索。 在对钢管混凝土拱桥受力分析的基础上，总结了现有桥梁的必威体育精装版监测技术， 根据钢管混凝土拱桥的特点，编制了相应地长期监测数据管理决策系统，以期能 为桥梁维护人员提供一套钢管混凝土拱桥维护有效的理论基础和决策方法。 关键词： 钢管混凝土拱桥 变形监测 数据库管理系统 安全评估 ABSTRACTThe ABSTRACT The advantage of strong leap ability and easy construction make the concrete—filled steel tube arch bridge toward large span day by day．With the increasing of the span，many problems were taken place．Security becomes an important problem． As bridge appear to damage，if no measurements were adopted to repair the damage in time，the people’S personal security will jeopardize and lead to great losses of national economy．Fortunately,bridge monitoring technologies are developing quickly,and these technologies provide advantages to guarantee for bridge maintaining．My research aimed at these following things． 1．Firstly,I analyzed the loading behavior of oncrete—filled steel tube arch bridge． After present the computing theories，all example Was put forward to check these theories．And results Were used in monitoring work in future． 2．Several measure equipments and methods of deformation monitoring system of the concrete-filled steel tube arch bridge were presented．At the same time，the deformation system and some notifications were introduced during bridge monitoring procedure． 3．The DMBS of the concrete-filled steel tube arch bridge deformation monitoring system were established based on professional data-base software．The advanced programming language Visual Basic6．0 Was adopted to compile data-base management application software． 4．The assessment method of evaluation the bridge health cond