Abstract Light-gauge structures framed with cold-formed steel (CFS) are considered a suitable alternative to the traditional hot-rolled or built-up steel framing as a primary structural system. Recently, CFS has been used as a lateral load resisting system in low- to mid-rise buildings. In this study, the seismic behavior of light-gauge CFS stud walls was evaluated through numerical modeling to investigate the failure modes, load capacities, initial stiffness, ductility ratio, and seismic response modification factor. Studies on different structural components of the light-gauge CFS stud wall were conducted. For framing members, different numbers of mid-field studs were considered. Moreover, the effects of adding blocking and the blocking locations were investigated by increasing their numbers along the wall height. As for the sheathing boards, different types of sheathing materials were investigated, including steel sheets, cement boards, and ferro-cement boards. Furthermore, sheathing openings with different configurations were studied. The numerical model results were verified against the results obtained from an experimental study conducted by the authors and reported in an associated paper. The results revealed that using steel sheathing could significantly increase the loading capacity, as well as the initial stiffness, whereas using cement board and ferro-cement board sheathing had adverse effects on the model behavior. However, models with cement board and ferro-cement board sheathing exhibited lesser instability in their framing members at the ultimate load in comparison with models with steel sheathing. Meanwhile, the presence of an opening in the sheathing resulted in significant reductions in the loading capacity and initial stiffness in comparison with their counterparts without sheathing openings.

中文翻译：

---

硅砂干法球磨过程中磨削能和粒度的演变

摘要 以冷弯型钢 (CFS) 为框架的轻型结构被认为是替代传统热轧或组合钢框架作为主要结构系统的合适选择。最近，CFS 已被用作中低层建筑的抗横向荷载系统。在这项研究中，通过数值建模评估了轻型 CFS 螺柱墙的抗震性能，以研究破坏模式、承载能力、初始刚度、延性比和地震响应修正系数。对轻型 CFS 立柱墙的不同结构部件进行了研究。对于框架成员，考虑了不同数量的中场螺栓。此外，通过增加沿墙高的数量来研究增加阻塞和阻塞位置的影响。至于护板，研究了不同类型的护套材料，包括钢板、水泥板和铁水泥板。此外，研究了具有不同配置的护套开口。数值模型结果与作者进行的实验研究获得的结果进行了验证，并在相关论文中进行了报告。结果表明，使用钢护套可以显着提高承载能力和初始刚度，而使用水泥板和铁水泥板护套对模型行为有不利影响。然而，与具有钢护套的模型相比，具有水泥板和铁水泥板护套的模型在极限载荷下其框架构件的不稳定性较小。同时，