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混凝土建筑物的温度场受太阳辐射热的影响很大,但基于混凝土建筑物现场实测温度进行太阳辐射热反馈较少。结合西南某建设中的混凝土坝工程,实时在线监测高温季节浇筑仓表面受环境气温和太阳辐射热的影响,通过建立浇筑仓表面小尺度温度统计模型,分离出环境温度分量,进而基于环境温度分量反馈了监测期间的太阳辐射热。分析表明,在高温季节,太阳辐射热对混凝土浇筑仓温度影响很大,能使该大坝混凝土浇筑仓周围空气日平均温度增量达到11℃以上,周围空气温度增量峰值达到30℃左右。
The temperature field of concrete buildings is greatly affected by solar radiant heat, but there is less solar thermal feedback based on the measured temperature of the concrete buildings. Combined with the concrete dam project in a construction in southwest China, the surface of the pouring silo in the high temperature season was monitored online in real time by ambient temperature and solar radiation heat. Through the establishment of a small scale temperature statistical model on the surface of the silo, the ambient temperature component was separated, The solar radiation heat was monitored during the monitoring period. The analysis shows that in the high temperature season, solar radiation heat has a great influence on the temperature of concrete pouring silos, which can increase the daily average temperature of air around the concrete pouring silos of the dam to above 11 ℃ and the peak value of ambient air temperature increase to about 30 ℃.