分期浇筑混凝土结合面上初始温度与发热率的确定
eterminations for Initial Temperature and Rate of Heat Generation on the Joint Face of Concrete Pouring By Stages
本文首先从热传导的偏微分方程和有限元法入手，分析了分期浇筑混凝土结合面上节点初始温度取值不同时，造成温度场计算结果偏差的数学原因。然后根据能量守恒原理，分析了混凝土浇筑结合面上节点初始温度取值不同时，造成温度场计算值与理论分析值（或者实测值）偏差的物理原因。最后，根据能量守恒原理，推导出混凝土浇筑结合面上节点初始温度和发热率的计算公式。
In the first of this paper, by the partial differential equations of heat exchange and finite element method, the mathematical causes which result in calculative errors of temperature fields as different initial temperature on the joint face of concrete construction was analyzed. Then, based on conservation of energy law, the physical cause of it was analyzed. Finally, according to energy conservative principle, two formulas of initial temperature and rate of heat generation on the interface of old and newly poured concrete were derived.
李东阳、夏雨、张仲卿
水工材料水利工程基础科学工程基础科学
能量守恒初始温度发热率温度场混凝土浇筑
conservation of energy lawinitial temperaturerate of heat generationtemperature fieldsconcrete construction
李东阳,夏雨,张仲卿.分期浇筑混凝土结合面上初始温度与发热率的确定[EB/OL].(2006-10-31)[2025-08-11].http://www.paper.edu.cn/releasepaper/content/200610-571.点此复制
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