钢结构抗火设计研究与防护进展

Research and Protection Progress on Fire Resistance Design of Steel Structures

文中综述了钢结构抗火设计与防护技术的研究进展。重点介绍钢材在高温下的力学性能退化机理和试验表征方法,评述了钢结构火灾响应的影响因素和数值模拟技术,展望了新型钢结构防火保护材料的研究方向。钢结构建筑的火灾安全设计需要从材料、构件、结构、防护等多角度综合考虑,协同运用试验研究、理论分析和数值模拟等手段,优化钢结构的耐火设计方法。

This article reviews the research progress of fire resistance design and protection technology for steel structures.It focuses on the mechanical performance degradation mechanism and experimental characterization methods of steel at high temperatures,evaluates the influencing factors and numerical simulation techniques of steel structure fire response,and looks forward to the research direction of new steel structure fire protection materials.The fire safety design of steel structures requires comprehensive consideration from multiple perspectives such as materials,components,structures,and protection,and the collaborative use of experimental research,theoretical analysis,and numerical simulation methods to optimize the fire resistance design method of steel structures.