陕北现代生土砖砌体墙构造界面冷凝分析

Analysis on the Condensation on Structural Interface of Modern Raw Clay Brick Masonry Wall in Northern Shanxi

为了解陕北地区现代生土砖砌体墙构造界面的冷凝结露情况,对陕北冬季典型日室内外温湿度进行测试,以测试数据为输入条件,采用稳态热湿传递分层分析方法,对符合规范要求的四种墙体构造进行界面冷凝分析。结果表明:陕北地区现代生土砖砌体建筑物外墙宜采用外保温构造,不宜使用内保温构造;对夹心保温构造提出改造建议,改造后构造未发生冷凝。该研究为陕北地区现代生土砖砌体墙保温构造提供设计依据。

In order to learn about the cold condensation at the structural interface of modern raw earth brick masonry wall in northern Shaanxi,indoor and outdoor temperature and humidity tests were carried out on typical days in winter,and the interfacial condensation analysis of four wall structures that meet the requirements of the code was carried out by using the steadystate heat and humidity transfer stratified analysis method with the test data as input conditions.The results show that the external insulation structure is better than the internal insulation structure for the external walls of the modern raw earth brick masonry buildings in northern Shaanxi.Suggestions are put forward to transform the sandwich insulation structure,after which no condensation occurs.The paper provides a basis for the design of thermal insulation structure of modern raw earth brick masonry wall in northern Shaanxi.