刘亚朋1,2,古 铮1,2,李 盛1,2,王起才1,2,宁贵霞1,2,贾 涛3
刘亚朋,古铮,李盛,等.筏板基础大体积混凝土水化热温度场数值模拟[J].混凝土与水泥制品,2018(1):84-88.
LIU Y M,GU Z,LI S,et al.Numerical Simulation of Hydration Heat Temperature Field of Mass Concrete of Raft Foundation[J].China Concrete and Cement Products,2018(1):84-88.
筏板基础大体积混凝土水化热温度场数值模拟
刘亚朋1,2,古 铮1,2,李 盛1,2,王起才1,2,宁贵霞1,2,贾 涛3
刘亚朋,古铮,李盛,等.筏板基础大体积混凝土水化热温度场数值模拟[J].混凝土与水泥制品,2018(1):84-88.
LIU Y M,GU Z,LI S,et al.Numerical Simulation of Hydration Heat Temperature Field of Mass Concrete of Raft Foundation[J].China Concrete and Cement Products,2018(1):84-88.
摘 要:采用三维数值模拟某筏板基础工程,分析了不同厚度处的水化热温度场分布。结果表明,筏板基础不同厚度处混凝土内部最高温度均随着入模温度的提高而增加,表面温度随着保温措施的增加而增大。最后,对于B2区筏板基础提出了最优方案,即入模温度为20℃,8.25m、3.4m、2.7m厚度处分别采用5cm、2cm、2cm厚橡塑板保温,最大温差值均控制在20~25℃。
Abstract: Three-dimensional numerical simulation of a raft foundation project is used to analyze the temperature distribution of hydration heat at different thickness. The results show that the interior maximum temperature of concrete in different thickness of raft foundation increases with the increase of molding temperature, and the surface temperature increases with the increase of thermal insulation measures. Finally, the optimum scheme is put forward for the raft foundation of B2 district, which takes the mold temperature of 20 degrees and use 5cm, 2cm and 2cm thickness rubber plastic plate for insulation measure of 8.25m, 3.4m and 2.7m meter thickness, the maximum temperature difference being should be controlled between 20 degrees to 25 degrees.
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