依据ISO有关标准 ,以温差比作为热桥影响区域的划分原则 ,通过简化的计算方法对常见的 6种热桥影响区域进行了计算。认为在计算热桥的影响区域时 ,除不开窗的墙面外 ,其他墙面若简化为无限大平面模型 ,按一维传热计算 ,存在较大误差。 According to the relevant ISO standards, the temperature difference ratio is used as the principle of the division of the affected area of ​​the thermal bridge. Six common areas affected by the thermal bridges are calculated by simplified calculation methods. It is considered that when calculating the influence area of ​​thermal bridge, except for the non-opening wall, the other walls are reduced to an infinite plane model, and there is a big error according to the one-dimensional heat transfer calculation.