摘要
基于温度和化学反应物浓度对化学反应速率影响的混凝土水泥水化反应放热模型,采用有限元数值方法,通过控制各单元对系统刚度矩阵及载荷列阵的贡献模拟分层浇筑施工的大体积混凝土温度场变化,分析了分层浇筑的大体积混凝土温度场变化规律。
Based on a new model for heat of hydration of cement, which takes the influence of temperature and the concentration of reactant into account, the temperature field was analyzed. The finite element program simulates the transient temperature field in massive concrete constructed layer by layer by controlling the contribution of each element to global stiffness matrix and load vector. The law of temperature field was illuminated through a simple example.
出处
《低温建筑技术》
2005年第6期87-89,共3页
Low Temperature Architecture Technology
关键词
大体积混凝土
分层浇筑
温度场
水泥水化反应
massive concrete
concreting in lifts
temperature field
hydrated reaction of cement
