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第三节冷桥处理一般导热系数比较小的隔热材料,它的抗拉,弯、压的力学性能往往不能胜任用来作为房屋建筑结构构件。因此,冷库建筑和低温设备的隔热构造的完整性,常常被那些力学性能好而导热系数比较大的构件所穿破,形成冷桥。冷桥对建筑的危害性,轻则增加冷耗,表面结露、结霜,在木结构中引起木材的霉烂,重则因“跑冷”利害,引起柱基、内隔墙墙基冻胀,影响建筑安全。除了在结构布局上不采用承重内隔墙;非承重内隔墙不做基础;尽可能
Section III cold bridge thermal conductivity of the general treatment of relatively small thermal insulation material, its tensile, bending, pressure mechanical properties often can not be used as a building structural components. Therefore, the insulation of cold storage buildings and low temperature equipment, the integrity of the structure, often mechanical properties of those with good thermal conductivity than the larger components worn to form a cold bridge. Cold-damp buildings on the dangers, ranging from increased cold consumption, surface condensation, frosting, causing wood in the wood structure of the rotten, heavy because of “running cold” interest, causing the column base, wall-based frost heave , Affect building safety. In addition to the structural layout does not use the load-bearing inner wall; non-load-bearing inner wall is not based; as far as possible