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Study on the Application of Cooling Pipe in Thin-walled Concrete Structure

机译：冷却管在薄壁混凝土结构中的应用研究

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摘要

Cracks of concrete structure easily appear in the period of construction and the difference between the inside and outside temperature at early stage and the basic difference of the temperature at later stage are considered as the main factors causing cracks, so the temperature control becomes the key of problem. In view of this problem, this paper puts forward the pipe cooling technology which is usually used in the mass concrete to the thin-walled concrete structure. Under the basic theories of concrete temperature field and numerical algorithm of pipe cooling, the 3-D FEM is adopted to simulate the thermal field of concrete sluice with and without cooling pipe during construction. The results of comparison show that cooling pipe in thin-walled concrete structure can achieve better effect on temperature control, so it should have great reference signification to similar concrete projects in the future.
机译：混凝土结构的裂缝容易出现在施工时期，内部和外部温度之间的差异，早期的温度的基本差异被认为是导致裂缝的主要因素，因此温度控制成为钥匙问题。鉴于此问题，本文提出了管道冷却技术，该技术通常用于质量混凝土到薄壁混凝土结构。在混凝土温度场的基本理论和管道冷却的数值算法下，采用3-D有限元件在施工期间模拟混凝土水闸的热场，而无需冷却管。比较结果表明，薄壁混凝土结构中的冷却管可以效果更好地对温度控制，因此应该对未来类似的具体项目具有很大的参考意义。

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