建筑钢结构防火设计及保护方法研究

Research on Fire Protection Design and Protection Method of Building Steel Structure

钢结构材料受温度变化影响较大,在火灾发生时,为了钢结构建筑物能够有效地满足设计和使用功能,本文通过对钢材的材料及力学性能进行分析,归纳总结了钢结构的防火设计流程及保护措施。结果表明,钢结构的承载力随温度的增加会迅速降低;钢结构的防火设计方法基于的设计原理主要有两种,钢结构的防火保护措施同样有两种方式,即外包法、内注法。

Steel structure materials are greatly affected by temperature changes.In order to effectively meet the design and use functions of steel structure buildings in case of fire,through the analysis on steel materials and mechanical properties,this paper summarizes the fire protection design process and protection measures of steel structure.The results show that the bearing capacity of steel structure will decrease rapidly with the increase of temperature.There are mainly two fire protection design methods for steel structures based on the design principles.There are also two fire protection measures for steel structures:outsourcing method and internal injection method.