考虑日照影响乌东德水垫塘边坡混凝土温度应力研究  

Research on the Thermal Stress of Side Slope Concrete in the Plunge Pool of Wudongde Hydropower Station Considering Solar Radiation

作　　者：赵宁 方朝阳[1] 吴向阳 ZHAO Ning;FANG Chao-yang;WU Xiang-yang(State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China;Huadong Engineering Corporation Limited, PowerChina, Hangzhou 311122, China)

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,武汉430072 [2]中国电建集团华东勘测设计研究院有限公司,杭州311122

出　　处：《中国农村水利水电》2019年第10期166-168,179,共4页China Rural Water and Hydropower

基　　金：湖北省水利重点科研项目“大型泵站流道混凝土温控措施研究”(HBSLKY201726)

摘　　要：采用有限元法模拟乌东德水电站水垫塘边坡混凝土浇筑过程,就施工期考虑日照影响与不考虑日照影响2种情况进行温度仿真计算,对比分析了日照对水垫塘边坡混凝土的温度及温度应力影响。结果表明,在早龄期必须考虑日照对大体积混凝土表面拉应力产生的不利影响,需要采取必要的保温措施。In this paper, the transient analysis type of FEM is applied to imitate the pouring process of side slope concrete in the plunge pool of Wudongde Hydropower Station. The effects on the temperature and thermal stress are compared under the solar radiation. The results indicate that insulation measures are obliged to be taken to deal with the adverse impacts on the surface pulling stress of early-age concrete structures caused by solar radiation.

关 键 词：太阳辐射 有限元法 混凝土温度应力 早龄期混凝土 日照影响 

分 类 号：TV554[水利工程—水利水电工程] TV315