某渡槽槽身结构复核评价分析  

作　　者：苏利军 杨国浩 刘真 

机构地区：[1]中水君信工程勘察设计有限公司,成都610039

出　　处：《科技创新与应用》2023年第1期89-92,共4页Technology Innovation and Application

摘　　要：某渡槽于1966年建成,设计流量16.7 m^(3)/s,其槽身采用钢筋混凝土U形薄壳结构,设计跨度14 m。经现场安全检测,槽身存在混凝土碳化强度不足、局部保护层脱落和钢筋外露锈蚀等病害。由于该渡槽使用时间已超过设计使用年限50年,为保证后期运行安全,需对该渡槽进行安全评价,其槽身的结构安全是整个渡槽安全评价的关键点之一,该文采用有限元方法对槽身进行复核分析,为渡槽安全评价提供依据。An aqueduct was completed in 1966 with a design flow of 16.7 m^(3)/s. Its body adopts a reinforced concrete U-shaped shell structure with a design span of 14 meters. Through the on-site safety inspection, the trough body has some diseases, such as insufficient carbonation strength of concrete, shedding of local protective layer, exposed corrosion of steel bar and so on. As the aqueduct has exceeded the design service life for 50 years, in order to ensure the safety of the aqueduct in the later stage, it is necessary to evaluate the safety of the aqueduct, and the structural safety of the aqueduct body is one of the key points of the whole aqueduct safety evaluation. In this paper, the finite element method is used to check and analyze the aqueduct body to provide a basis for aqueduct safety evaluation.

关 键 词：渡槽 结构安全 U型薄壳 有限元法 安全评价 

分 类 号：TV672.3[水利工程—水利水电工程]