建筑工程多为混凝土结构。而混凝土的裂缝却较为普遍,几乎无所不在。尽管我们在施工中采取各种措施,小心谨慎,但裂缝仍然时有出现。究其原因,我们对混凝土温度应力的变化注意不够是其中之一。在大体积混凝土中,温度应力及温度控制具有重要意义。这主要是由于两方面的原因。首先 Most of the construction works are concrete structures. Cracks in concrete are more common and almost ubiquitous. Although we have taken various measures in construction and are careful, cracks still appear. The reason for this is that we do not pay enough attention to the changes in the concrete temperature stress. In mass concrete, temperature stress and temperature control are of great significance. This is mainly due to two reasons. First of all