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一、内外温差的含义一个坝块浇筑后,由于水化热和外界气温的影响,内部温度在不断变化。相对于初温条件,温度的变化可分为均匀和非线性两部份,由叠加原理可分别考虑。降温的非线性分布,在坝体内将引起应力,需要加以分析和限制。它所引起应力的大小与非线性降温的幅度及梯度有关,而两者均可由坝块内外两点的降温之差表示。但在初温为均匀分布的条件下,内外两点
First, the meaning of the temperature difference between inside and outside After pouring a dam, due to hydration heat and the impact of outside temperature, the internal temperature is constantly changing. Relative to the initial temperature conditions, the temperature changes can be divided into uniform and nonlinear two parts, by the principle of superposition can be considered separately. Non-linear distribution of cooling in the dam body will cause stress, need to be analyzed and limited. The magnitude of the stress caused by it is related to the magnitude and gradient of the non-linear cooling, and both of them can be expressed by the difference in temperature between two points inside and outside the dam. But in the initial temperature for the uniform distribution of conditions, both inside and outside