钢结构防火保护与应用分析

The application and analysis of fire protection of structural steel

随着改革开放的不断深入和社会经济的迅速发展,越来越多的建筑尤其是超高层、大跨度建筑大量采用了钢结构。但钢结构耐火极限低这一致命弱点大大制约了钢结构的发展,为了满足钢结构的应用需求,必须对其进行防火处理。本文对钢结构的现状、钢结构的优点和缺陷、钢结构的防火保护方法、防火涂料的应用及展望进行了分析。

With further reform opening and social economic development,more and more buildings,especially super-tall buildings and big span ones,are all used steel structure in great quantities.However,the fatal weakness of steel structure,low refractory limit,restrict its development.In order to meet the application requirement of steel structure,we must carry on fire prevention to improve refractory limit,which will make steel structure exert it＇s advantage in all kinds of construction works.So,the present situation,the advantages and defects,the fire protection methods of steel structure,also the application and prospect of fire retardant coating,are analyzed in this paper.