SummaryThis paper presents a new performance‐based seismic design method for the design of repairable linked column frame (LCF) and linked column system (LCS). Currently, the biggest problem of these systems is the lack of a simple and practical design method that leads to the design of optimal models with sufficient seismic capacity. The interaction of the primary and secondary systems, changing the lateral load pattern during an earthquake, and the implementation of the target performance objectives have complicated the design of these systems. The evaluations carried out in this research show that the rotation of link beams must be controlled in the design. Therefore, the ultimate plastic rotation of links is determined to be 0.01 rad for the seismic intensity of design base earthquake and 0.015 rad for maximum considered earthquake. The results show that the models designed using the presented method are optimal, have sufficient seismic capacity, and achieve the target performance objectives. In addition, although previous researches have shown that these systems have a suitable seismic behavior, their seismic behavior have not been compared with other structural systems. Comparing can show the behavioral characteristics of a new structural system; hence, the elastic and plastic behavior of the LCF and LCS models have been compared with other common steel structural systems using all analysis methods. Moreover, in the presented method for the design of LCF and LCS systems, nonlinear time history analysis using the endurance time method (ETM) is used, and due to the newness of the endurance time method, its results are compared with the median results of nonlinear time history analysis at different seismic hazard levels and incremental dynamic analysis (IDA), in 45 samples. The results show that the endurance time analysis is a reasonable and efficient method, and in this comparison, the difference between the results of ETM and IDA methods is 6% on average.

中文翻译：

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一种新的基于性能的抗震设计方法，采用连柱框架系统的耐久性时间分析以及结构系统和抗震分析方法的比较

摘要本文提出了一种新的基于性能的抗震设计方法，用于设计可修复的连柱框架（LCF）和连柱系统（LCS）。目前，这些系统的最大问题是缺乏简单实用的设计方法来设计具有足够抗震能力的优化模型。主系统和辅助系统的相互作用、地震期间横向荷载模式的变化以及目标性能目标的实现使这些系统的设计变得复杂。本研究中进行的评估表明，设计中必须控制连接梁的旋转。因此，设计基准地震烈度下连杆的极限塑性旋转确定为0.01 rad，最大考虑地震确定为0.015 rad。结果表明，采用该方法设计的模型是最优的，具有足够的抗震能力，达到了预期的性能目标。此外，虽然先前的研究表明这些系统具有合适的抗震性能，但其抗震性能尚未与其他结构系统进行比较。比较可以显示新结构系统的行为特征；因此，使用所有分析方法将 LCF 和 LCS 模型的弹性和塑性行为与其他常见钢结构系统进行了比较。此外，在所提出的LCF和LCS系统设计方法中，使用了使用耐久时间方法（ETM）的非线性时程分析，并且由于耐久时间方法的新颖性，其结果与中值结果进行了比较45 个样本中不同地震危险级别的非线性时程分析和增量动态分析 (IDA)。结果表明，耐久性时间分析是一种合理、有效的方法，在本次比较中，ETM和IDA方法的结果平均相差6%。