Robust and pre-fabrication construction techniques are the cutting edge practice in the building industry. Cold-frame, warm-frame and hybrid-frame are three common Light-gauge Steel Frame (LSF) wall constructions applied for better energy performance. Still, the applications of the aforementioned wall configurations are restricted due to limited fire safety studies. This paper presents the fire performance investigations and results of cold-frame, warm-frame, and hybrid-frame LSF walls together with three novel configurations maintaining the same material quantities. Successfully validated 3D heat transfer finite element models were extended to six wall configurations. Time variant temperature profiles from Finite Element Analyses were evaluated against the established Load Ratio (LR)-Hot-Flange (HF) temperature curve to determine the structural fire resistance. Modified warm-frame construction showed the best performance where the Fire Resistance Level (FRL) is approximately twice that of conventional LSF wall configurations. Hence, the novel LSF wall configurations obtained by shifting the insulation material toward the fireside of the wall make efficient fire-resistant wall solutions and the new designs are proposed to be incorporated in modular constructions for enhanced fire performance.

健壮和预制的建筑技术是建筑行业的最先进实践。冷框架，暖框架和混合框架是三种常见的轻型钢框架（LSF）墙结构，用于提高能源效率。但是，由于有限的防火研究，上述壁构造的应用受到限制。本文介绍了冷框，暖框和混合框LSF墙的防火性能调查结果以及三种保持相同材料数量的新颖配置。成功验证的3D传热有限元模型已扩展到六种壁面配置。根据已建立的负载比（LR）-热法兰（HF）温度曲线评估了有限元分析的时变温度曲线，以确定结构的耐火性。改进的保温框架结构表现出最佳性能，其中耐火等级（FRL）约为传统LSF墙构造的两倍。因此，通过将隔热材料移向墙体的火边而获得的新颖的LSF墙体配置可提供有效的耐火墙解决方案，并且提出将新设计并入模块化结构中以增强防火性能。