V2EX thermal bridge

Thermal Bridge

释义 Definition

thermal bridge(也称 cold bridge)指建筑结构中导热性更强、导致热量更容易穿过的部位(如混凝土梁柱、金属构件、穿透保温层的连接件等),会引起热损失增加、室内表面结露/发霉风险上升,并降低保温效果。(在暖气季常表现为“冷点”。)

例句 Examples

The installer added insulation to reduce thermal bridges around the window frame.
安装人员在窗框周围加了保温材料,以减少热桥。

Even with thick insulation, a steel balcony connection can create a significant thermal bridge that leads to condensation on the interior wall in winter.
即使保温层很厚,钢制阳台连接件仍可能形成明显的热桥,导致冬季室内墙面出现冷凝水。

发音 Pronunciation (IPA)

/θml brd/

词源 Etymology

thermal 来自希腊语 thermē(“热”),经拉丁语与法语进入英语,表示“与热有关的”。bridge 原意为“桥”,引申为“连接/跨越的结构”。组合成 thermal bridge,形象地表示:热量像“走桥”一样通过某个更易导热“通道”穿过建筑围护结构。

相关词 Related Words

文学与著作 Literary Works

  • Buildings and Thermal Bridges(建筑与热桥相关专著,讨论热桥机理、计算与构造处理)
  • The Passivhaus Handbook: A Practical Guide to Constructing and Retrofitting Buildings for Ultra-Low Energy Performance(被动房手册,涉及热桥控制与细部做法)
  • BS EN ISO 10211(热桥计算的国际/欧洲标准文本,常直接使用“thermal bridge”术语)
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