【作者】 杨桂新；

【导师】 倪富健； 叶遇春；

【作者基本信息】 东南大学 ， 交通运输工程， 2006， 硕士

【摘要】 近年来我国公路建设发展迅速,桥梁的数量也急剧增大,由于桥梁建设中对桥面排水和防水的研究没有引起足够的重视,由此引起许多铺装层出现早期损坏现象影响了桥梁行车使用性能和混凝土的耐久性。本文在调查桥面铺装和防水层出现的主要病害现象的基础上,对防水层损坏原因进行了深入分析,对设防水层的桥面铺装结构进行了力学计算分析,通过室内外试验进行了桥面防水的技术研究,解决该功能层的材料选择、试验途径及施工质量控制问题,为宁连高等级公路大修工程等的桥面改造专项提供技术指导和技术服务。本文的主要研究内容如下:1、调查桥面防水层的现状,分析桥面铺装层破坏原因及防水层设计要求。桥面铺装早期损坏己引起广大技术工作人员关注,通过病害调查、损坏原因分析,阐述设置桥面防水(粘结)层的重要性。2、设防水层的混凝土桥桥面铺装结构力学计算与分析。选取了简支空心板梁、简支T梁和连续箱粱三种结构形式的铺装层,运用大型有限元分析软件来研究铺装层的受力特点,并对连续梁支座负弯矩区和T梁横隔板处等特定部位的铺装层受力进行了分析,为铺装层设计提供理论依据。3、通过分析研究,提出混凝土桥桥面铺装设防水层的技术指标和相应试验方法;4、采用室内及野外试验的方法,针对涂膜类防水材料进行研究,提出公路桥梁桥面防水层的施工工艺控制措施和施工质量检测内容与方法,以指导工程实践。本论文的研究成果具有较好的实用价值,对桥面防水层的材料选择、施工控制和质量检测有一定的指导意义,社会和经济效益明显。更多还原

【Abstract】 With the rapid development of highway,an obvious increase in quantity of bridge is coming.Because we ignore the quality control of soft water-proof layer in bridge building , it influenced the characteristic for use and durability of concrete.Based on the investigation of damage in bridge decks pavement and water-proof layer,this paper analyzed the reason which caused diseases,and the finite element mechanics method is taken to analyze the waterproof and cohesive layer in pavement structure.Application Technical of Soft Water-proof Layer in Concrete Bridge Surface is researched by using room tests and other tests.It proposed the choice of material、main property index and it’s tests、quality control,The research results has been applied in Ninglian highway and it can guide practice of soft water-proof layer in concrete bridge surface in other engineering.The main contents are:1、By investigation of water-proof layer,this paper analyzed the reason which caused diseases,and the require of water-proof layer design.According the practice,it’s important to put the waterproof and cohesive layer in bridge pavement structure;2、According plate beam、T beam and continuous box girdr,the mechanical behaviors of bridge pavement structure are studied using the finite element method,and find the law of mechanic,which can provide the basis for design.3、The main property index and it’s test method in the waterproof and cohesive laye are introduced;4、The construction craft and the quality control technology of soft water-proof layer in concrete bridge surface are explained,by using room tests and other test;This paper r proposed the construction craft and quality control of soft water-proof layer in concrete bridge surface.,which can serve as a good aid.更多还原