Profiled double-skin composite walls (PDSCWs) consist of two profiled steel plates and infilled concrete, and they have been widely utilized with the development of prefabricated structure systems. By using re-entrant profiled sheets in PDSCWs, the stability performance of faceplates is greatly enhanced and almost no additional members are needed to connect the faceplates and infilled concrete. Hence, these PDSCWs with re-entrant profiled faceplates have an excellent potential for applications as bearing walls in low- and medium-rise building structures. In view of the simultaneous multi-story fabrication and erection of the PDSCWs in practice, global buckling performance of slender PDSCWs under axial compression is investigated in this paper. A refined finite element (FE) model is established and then validated by previous experimental results. A numerical parametric analysis is conducted to study the PDSCW performance by considering the parameters including geometrical dimensions, steel and concrete strengths, faceplate types and amplitudes of initial imperfection. By comparing the extensive examples obtained from FE models with stability curves in different design codes, the curves in GB50017 and AS2327 are found to be able to conservatively predict the resistance of slender PDSCWs. For better statistical performance, a modified design formula based on curve c in GB50017 is recommended. The proposed formula can fit well with the numerical examples with a more reasonable level of accuracy; therefore, this formula is reliable and can provide valuable references for designing the PDSCWs in practice.

异型双层复合墙（PDSCW）由两个异型钢板和填充混凝土组成，随着预制结构系统的发展，它们已被广泛使用。通过在PDSCW中使用凹入型材，大大提高了面板的稳定性，并且几乎不需要其他构件来连接面板和填充混凝土。因此，这些带有凹入型异型面板的PDSCW具有在中低层建筑结构中用作承重墙的巨大潜力。鉴于PDSCWs的同时多层制造和安装，本文研究了细长PDSCWs在轴向压缩下的整体屈曲性能。建立了改进的有限元（FE）模型，然后通过先前的实验结果对其进行了验证。通过考虑参数，包括几何尺寸，钢筋和混凝土强度，面板类型和初始缺陷的幅度，进行了数值参数分析，以研究PDSCW的性能。通过比较从有限元模型获得的大量示例与不同设计规范中的稳定性曲线，发现GB50017和AS2327中的曲线能够保守地预测细长PDSCW的电阻。为了获得更好的统计性能，基于曲线的修改后的设计公式 发现GB50017和AS2327中的曲线能够保守地预测细长PDSCW的电阻。为了获得更好的统计性能，基于曲线的修改后的设计公式 发现GB50017和AS2327中的曲线能够保守地预测细长PDSCW的电阻。为了获得更好的统计性能，基于曲线的修改后的设计公式建议使用GB50017中的c。所提出的公式可以更合理地与数值示例相吻合。因此，该公式是可靠的，可以为实际设计PDSCW提供有价值的参考。