This paper proposes a novel ductile linked rocking steel frame (DLRF) that relying on gravity load and rocking column base components rather than post-tensioning elements to provide the self-centering capacity. In the DLRF, rocking steel braced frames remain elastic by being permitted to uplift and rock at the rocking column bases, coupled with ductile links that act as structural fuses to dissipate energy through accommodating vertical movement between the two-rocking steel braced frames. Rocking column bases can dissipate energy through fuses that can be repaired easily by being bolted to the column. The design equations to govern the corresponding resistance mechanism of the DLRF for each limit state are presented and applied to a four-story prototype structure. Nonlinear dynamic analyses were performed to examine the behavior of the DLRF. The seismic performance of the DLRF is contrasted with a corresponding fixed-base structure, in which the column base is designed as a rigid connection. The comparison indicated that the DLRF exhibited uniformed interstory drift distribution as well as negligible residual drift subjected to DBE and MCE intensities, and thus the soft-story failure can be effectively avoided. Dynamic analyses also confirmed that the proposed design equations can predict the mechanical behavior of the DLRF with expected drift capacity and flag-shaped hysteretic response. Therefore, the proposed DLRF is a viable alternative to a seismic load-resisting system which could avoid severe and expensive damage to the structure, enhancing resilience capacity.

本文提出了一种新型的延性连接式摇摆钢框架（DLRF），该框架依靠重力载荷和摇摆柱基础构件而不是后张紧元件来提供自定心能力。在DLRF中，通过允许摇摆的钢制支撑框架在摇摆柱底座上升起和摇摆，并与可延展的连杆相连，弹性的连杆通过在两个摇摆的钢制支撑框架之间进行垂直运动来消散能量，从而保持弹性，从而保持弹性。摇摆的立柱基座可以通过保险丝消散能量，通过将其固定到立柱上可以轻松地对其进行维修。提出了用于控制每种极限状态的DLRF相应电阻机制的设计方程，并将其应用于四层原型结构。进行非线性动力学分析以检查DLRF的行为。DLRF的抗震性能与相应的固定底座结构形成对比，在固定底座结构中，圆柱底座设计为刚性连接。比较表明，DLRF的层间漂移分布均匀，残余漂移可忽略不计。承受DBE和MCE强度，因此可以有效避免软故事失败。动力学分析还证实了所提出的设计方程可以预测DLRF的机械性能，并具有预期的漂移能力和旗形滞后响应。因此，提出的DLRF是抗地震载荷系统的可行替代方案，可以避免对结构造成的严重和昂贵的破坏，从而提高了弹性。