Abstract Seismic resistant steel structures have been designed for years in consideration of the material's ductility and toughness as important factors determining its performance under cyclic loading. Until recently, these properties were attributed to carbon steel, a perception that is now reviewed in light of recent technological advances that led to the development of high-strength steel (HSS) with enhanced properties. In this paper, the cyclic response of innovative seismic resistant FUSEIS systems with dissipative links of conventional carbon steel (S355) and HSS (S500, S700) is investigated. Eight large-scale tests conducted in the National Technical University of Athens (NTUA) are presented and their results are discussed.Overall, the system with beam links underwent cyclic loading up to ±3.5% drift while exhibiting less than 20% load degradation. At these deformations, the system with pins had developed catenary action and thus suffered minor load degradation despite of extensive cracking. Comparison with previous research on FUSEIS with links of S235 steel indicates that the increase in yield strength leads to respective decrease in ductility. The numerical simulation of the tests is outlined, incorporating a user defined hybrid material model for plasticity and damage. In most cases, damage initiation in the models was well predicted.

中文翻译：

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抗震系统耗散元件上的高强度钢：测试和模拟

摘要 抗震钢结构的设计考虑到材料的延展性和韧性是决定其在循环载荷下性能的重要因素。直到最近，这些特性都归因于碳钢，鉴于最近的技术进步导致开发具有增强特性的高强度钢 (HSS)，现在对这种看法进行了审查。在本文中，研究了具有传统碳钢（S355）和高速钢（S500、S700）耗散连接的创新抗震 FUSEIS 系统的循环响应。介绍了在雅典国立技术大学 (NTUA) 进行的八项大规模测试，并讨论了它们的结果。总体而言，带有梁链接的系统承受了高达 ±3 的循环载荷。5% 的漂移，同时表现出小于 20% 的负载退化。在这些变形中，带有销钉的系统产生了悬链线作用，因此尽管出现了广泛的裂纹，但仍承受了轻微的载荷降级。与以往对 S235 钢连杆 FUSEIS 的研究比较表明，屈服强度的增加导致相应的延展性下降。概述了测试的数值模拟，结合了用户定义的塑性和损伤混合材料模型。在大多数情况下，模型中的损坏开始得到了很好的预测。与以往对 S235 钢连杆 FUSEIS 的研究相比，屈服强度的增加导致相应的延展性下降。概述了测试的数值模拟，结合了用户定义的塑性和损伤混合材料模型。在大多数情况下，模型中的损坏开始得到了很好的预测。与以往对 S235 钢连杆 FUSEIS 的研究比较表明，屈服强度的增加导致相应的延展性下降。概述了测试的数值模拟，结合了用户定义的塑性和损伤混合材料模型。在大多数情况下，模型中的损坏开始得到了很好的预测。