早在上一世纪,曾有人建议使用水冷却技术进行钢结构防火。但这项技术到本世纪六十年代才在建筑实践中得到应用。使用水冷却防火技术时,被保护的结构构件须制成空心型材,管内充水。遇到火灾时,水升温汽化,排出热量。为了确保冷却,水必须在系统中循 As early as the last century, it has been proposed to use water cooling technology for fire protection of steel structures. However, this technology was only used in construction practice in the 1960s. When water-cooled fire protection technology is used, the structural components to be protected must be made into hollow sections and filled with water. In the event of a fire, the water warms up to vaporize and discharge heat. To ensure cooling, water must be circulated in the system