Abstract This paper presents the cyclic behavior of double-skin composite (DSC) walls for mid- to high-rise buildings, which consist of concrete filled steel tubes (CFTs), a pair of steel faceplates connected by tie bolts, and infill concrete. Four 1/3-scale DSC wall specimens, varying in faceplate profile and tie bolt spacing, were tested under combined axial and cyclic lateral loading. All specimens failed in flexure with a progression of steel tube fracture, steel faceplate buckling, and concrete crushing at wall bottom. The corrugated DSC walls and the flat DSC wall with standard bolt spacing were able to achieve an ultimate drift ratio around 3.4% and a ductility ratio greater than 5.4, while the flat DSC wall with bolt spacing 50% over code limit presented early faceplate buckling and undesired seismic performance. Compared to flat DSC walls, corrugated DSC walls, even with a doubled tie bolt spacing, had considerably higher initial stiffness, ductility ratio and energy dissipation. Formulations are proposed for predicting the lateral strength and drift capacity of corrugated DSC walls without elastic local buckling. The difference between the predicted and measured capacity for either lateral strength or drift is on average less than 6%.

中文翻译：

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带平面和波纹面板的双层复合墙体的循环行为

摘要 本文介绍了用于中高层建筑的双层复合材料（DSC）墙的循环行为，该墙由钢管混凝土（CFT）、一对通过拉紧螺栓连接的钢面板和填充混凝土组成。四个 1/3 比例的 DSC 壁试样在组合轴向和循环横向载荷下进行了测试，这些试样的面板轮廓和拉紧螺栓间距不同。所有试样均在弯曲中失败，钢管断裂、钢面板屈曲和墙底混凝土破碎。具有标准螺栓间距的波纹 DSC 壁和扁平 DSC 壁能够实现约 3.4% 的极限漂移比和大于 5.4 的延展性，而螺栓间距超过规范限制 50% 的扁平 DSC 壁出现面板过早屈曲和不希望的抗震性能。与平坦的 DSC 壁相比，波纹 DSC 壁，即使拉杆间距加倍，初始刚度、延性比和能量耗散也显着提高。提出了用于预测没有弹性局部屈曲的波纹 DSC 壁的横向强度和漂移能力的公式。横向强度或漂移的预测和测量能力之间的差异平均小于 6%。