郭家沱长江大桥锚碇大体积混凝土水化热研究  

Study on Hydration Heat of Massive Concrete of Anchorage of Guojiatuo Yangtze River Bridge

作　　者：谭双全[1] 黎人亮 熊桂开 祝小龙[1] 胡奇 TAN Shuangquan;LI Renliang;XIONG Guikai;ZHU Xiaolong;HU Qi

机构地区：[1]重庆市勘测院,重庆市400020 [2]重庆中建郭家沱大桥建设运营管理有限公司,重庆市400020

出　　处：《城市道桥与防洪》2022年第3期114-118,M0011,共6页Urban Roads Bridges & Flood Control

基　　金：重庆市技术创新与应用发展(面上项目)(cstc2020jscx-msm X0080)

摘　　要：重力式锚碇是典型的大体积混凝土结构,施工过程中的水化热应予以严格控制,避免产生温度裂缝.以郭家沱大桥锚碇为例,在施工前进行水化热分析,制定相应的大体积混凝土温控措施.经现场监测,各项指标均满足标准限值,未出现混凝土温度裂缝,证明温控措施有效,确保了锚碇质量.Gravity anchorage is a typical massive concrete structure.The hydration heat during construction should be strictly controlled to avoid the temperature cracks.Taking the anchorage of Guojiatuo Bridge as an example,the hydration heat is analyzed out before construction and the corresponding temperature control measures for massive concrete are formulated.Through the field monitoring,all indexes meet the standard limits,and no concrete temperature cracks are found,which proves the efficiency of temperature control measures and ensures the quality of concrete.

关 键 词：锚碇 大体积混凝土 水化热 温控 

分 类 号：TU755[建筑科学—建筑技术科学]