The paper studies the influence of the type and thickness of insulation material on the heat bridge of wall corner heat bridge system, and calculates quantitatively the change rule of temperature distribution and heat transfer variation for wall model in 10-40mm thickness by Ansys software, when the wall model is treated by insulation materials of polyurethane (PU), polystyrene (EPS) and insulation mortar. The result shows that the heat flow is maximum of the intersection between inner wall and constructional column when the heat bridge is not insulated. With the increase of the thermal conductivity of insulating material, the temperature between insulating layer and heat bridge pillar is increasing gradually;With the increase of the insulating layer's thickness, the temperature between insulating layer and heat bridge pillar is decreasing gradually but slowering. The overall balance thickness is 20 mm.%主要研究保温材料种类和厚度对墙角热桥柱系统热桥的影响规律,采用Ansys软件定量计算了保温材料为聚氨酯(PU)、模塑聚苯板(EPS)和保温抹面砂浆,保温层厚度为10 mm~40 mm时砖墙模型温度分布、热量传递的变化规律.结果表明:不对热桥进行保温处理时,在内墙与构造柱相交的地方,热流量最大,随着保温材料导热系数的增加,保温层与热桥柱接触的温度逐渐增加,随保温材料厚度的增加,保温层和热桥柱接触点的温度逐渐下降,但下降幅度逐渐减小,其综合平衡厚度为20 mm.
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