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徐 岳1,唐先习1,2,薛倬昆1,董海航1
(1 长安大学公路学院,西安710064; 2 兰州理工大学土木工程学院,兰州730050)[摘要] 目前国内外混凝土结构的耐久性问题日益突出,但各国对混凝土结构耐久性进行的研究主要集中在结构材料和结构构件两个方面。混凝土桥梁作为混凝土结构的一种形式,有其自身的特点,研究应增加合理耐用结构构造研究的内容。结合混凝土桥梁耐久性下降原因的调查和分析,结构构造的研究内容主要从以下几个方面展开:截面配筋构造,预应力体系构造,铰缝构造,横隔板(梁)连接构造,桥面板构造,构件耐用构造性能,桥梁防排水构造和桥梁可检修、可更换构造。研究针对不同的结构构造采用不同的方法和手段,来确定混凝土桥梁合理耐用结构构造形式。
[关键词] 混凝土桥梁;合理耐用;结构构造Research on applicable and durable configurations of concrete bridge
Xu Yue1, Tang Xianxj1,2, Xue Zhuokun1, Dong Haihang1
(1School of Highway, Chang'an University, Xi'an 710064, China; 2 School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China)Abstract: The durability status of concrete structure is one of the severe problems of concern in domestic and overseas, but the research of concrete structure durability is mainly focused on materials and components of structures. As one form ofconcrete structures, the concrete bridge has it's features, so research ofconcrete bridge should add the contents of applicable and durable configurations. Based on the survey and analysis about causes of durability deterioration, research of configurations should be taken as follows: reinforcing formation, configuration of prestressed system, configuration of hinge joint, connection construction of diaphragm plate, configuration of bridge deck, configuration durability of components, configuration of waterproof and drainage, configuration of repairing and replacement. According to various configurations, these researches take different methods, to determine the applicable and durable configurations of concrete bridge.
Keywords: concrete bridge; applicable and durable; configuration