Curve-shaped laser-cut steel plate dampers named curved damper have been recently introduced, and their performance has been experimentally investigated through cyclic loading tests. Using the same concept, this study aims to propose a novel cost-effective toggle brace–curved damper (TBCD) system, which combines the toggle braces and curved dampers to provide a practical passive control device. The seismic performance of three-, six-, and nine-story steel moment–resisting structures utilized with TBCD is analyzed using nonlinear time history analysis (NTHA). For better comparison, the TBCD system is optimized using the multi-objective nondominated sorting genetic algorithm (NSGA-II). The seismic performance of the proposed system is then compared against the optimized viscous dampers (VDs), viscoelastic dampers (VEDs), and buckling-restrained braces (BRBs). The results of the optimization process show that the TBCD has comparable performance to the other passive control devices presented, while it leads to more cost-effective design solutions by reducing the constructional, installation, life cycle maintenance and repair cost, and downtime. Hence, the proposed TBCD system can be considered as an efficient alternative to conventional seismic force–resisting systems for both newly built structures and the seismic retrofitting of existing structures.

最近引入了称为弯曲阻尼器的曲线形激光切割钢板阻尼器，并通过循环载荷试验对它们的性能进行了实验研究。使用相同的概念，本研究旨在提出一种具有成本效益的新型曲柄支撑曲线阻尼器（TBCD）系统，该系统结合了曲柄支撑和弯曲阻尼器以提供实用的被动控制装置。使用非线性时程分析（NTHA）分析了与TBCD一起使用的三层，六层和九层抗弯钢结构的抗震性能。为了更好地进行比较，使用多目标非支配排序遗传算法（NSGA-II）对TBCD系统进行了优化。然后将拟议系统的抗震性能与优化的粘滞阻尼器（VDs），粘弹性阻尼器（VEDs），和屈曲约束牙套（BRB）。优化过程的结果表明，TBCD具有与所介绍的其他无源控制设备相当的性能，同时通过减少结构，安装，生命周期的维护和维修成本以及停机时间，可以提供更具成本效益的设计解决方案。因此，对于新建结构和现有结构的抗震改造，建议的TBCD系统可被视为传统抗震系统的有效替代方案。