Abstract Steel plate shear wall (SPSW) buckling-restrained by hat-section cold-formed steel is a new type of lateral bearing system that uses hat-section cold-formed steel members to restrain the buckling deformation of the SPSW. Integration of architectural and structural functions is achieved in this new shear wall system by externally bonding oriented strand board (OSB) and filling sound insulation material. A finite element (FE) model was developed and validated against seven experimental results in terms of failure modes, shear force-story drift angle curves and shear bearing capacities. Upon validation, an extensive parametric study was carried out to investigate the six key parameters including spacing of connecting bolts, geometries of hat-section steel, spacing of hat-section steel, steel material strength, width-height ratio of the SPSW and height-thickness ratio of the SPSW. Based on the 104 numerical results, new design rules are proposed to predict the stiffness, shear yielding strength and shear ultimate strength of this new type of buckling-restrained SPSW structure. By comparing the predicted results with experimental and numerical results, the proposed design method is found to be accurate and consistent. In addition, an equivalent cross-bar model is developed as a simplified substituted SPSW model to be used in theoretical modelling programmes in the future.

中文翻译：

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帽形截面冷弯型钢构件抗屈曲钢板剪力墙有限元建模与设计

摘要 帽形冷弯型钢抑制屈曲钢板剪力墙(SPSW)是一种采用帽形冷弯型钢构件抑制SPSW屈曲变形的新型侧向承载系统。这种新型剪力墙系统通过外部粘合定向刨花板（OSB）和填充隔音材料实现了建筑和结构功能的整合。开发了有限元 (FE) 模型，并针对失效模式、剪切力-楼层漂移角曲线和剪切承载能力方面的七个实验结果进行了验证。经验证，对六个关键参数进行了广泛的参数研究，包括连接螺栓间距、帽型钢几何形状、帽型钢间距、钢材强度、SPSW 的宽高比和 SPSW 的高厚比。基于104个数值结果，提出了新的设计规则来预测这种新型屈曲约束SPSW结构的刚度、剪切屈服强度和剪切极限强度。通过将预测结果与实验和数值结果进行比较，发现所提出的设计方法是准确且一致的。此外，还开发了等效的横杆模型作为简化的替代 SPSW 模型，以用于未来的理论建模程序。通过将预测结果与实验和数值结果进行比较，发现所提出的设计方法是准确且一致的。此外，还开发了等效的横杆模型作为简化的替代 SPSW 模型，以用于未来的理论建模程序。通过将预测结果与实验和数值结果进行比较，发现所提出的设计方法是准确且一致的。此外，还开发了等效的横杆模型作为简化的替代 SPSW 模型，以用于未来的理论建模程序。