To mitigate the deficiency of the conventional steel frames, a novel steel frame system using rocking truss (SFWRT) and self-centering energy dissipative devices (SCED) was developed. The SCED consists of structural members, pre-tension tendons, abutting element and friction dissipation devices, which exhibits excellent self-centering and energy dissipation capacity. This new structural system is analyzed using Incremental Dynamic Analysis method (IDA). A scaled earthquake acceleration response spectrum from a specified ground motion was used in this analysis. It is found that the formation of the plastic hinges of the structural components includes four stages: emergence, developing, degradation and completely bearing capacity loss. A comparative study is also made to investigate the development of these plastic hinges under different ground motions in both traditional steel frame and SFWRT. The results for evaluating the lateral collapse resistance capacity indicate that the rocking truss can significantly decrease the structural dynamic response and improve the seismic performance of buildings. The collapse probability curves of the steel frame and SFWRT based on three limit states are compared. It is found that the rocking truss is helpful to reduce the collapse probability under earthquakes. The damage of the steel frame as well as the expected loss of the main structure after an earthquake can be significantly reduced with the help of rocking truss, which would also reduce the repair cost and improve the structural resilience under earthquakes significantly.

为了减轻常规钢框架的不足，开发了一种使用摇摆桁架（SFWRT）和自定心消能装置（SCED）的新型钢框架系统。SCED由结构构件，预应力筋，邻接元件和摩擦耗散装置组成，具有出色的自定心和能量耗散能力。使用增量动态分析方法（IDA）对这种新的结构系统进行了分析。在此分析中，使用了来自指定地面运动的缩放地震加速度响应谱。发现结构部件的塑料铰链的形成包括四个阶段：出现，发展，退化和完全丧失承载能力。还进行了一项比较研究，以研究在传统钢框架和SFWRT中不同地面运动下这些塑料铰链的发展。侧向抗倒塌能力的评估结果表明，摇摆桁架可以显着降低结构动力响应并改善建筑物的抗震性能。比较了基于三种极限状态的钢框架和SFWRT的倒塌概率曲线。研究发现，摇摆的桁架有助于降低地震作用下的倒塌概率。借助摇摆的桁架，可以大大减少钢框架的损坏以及地震后主体结构的预期损失，这也将降低维修成本并显着提高地震作用下的结构弹性。