Abstract In the design of steel building frames, comprehensive consideration is required to determine beam-to-column connections because their characteristics largely influence the performance of the whole frame. Recent studies by some researchers have investigated the application of dampers to bolted beam-to-column connections, where the dampers are often positioned between the bottom beam flange and the column. This study investigates the application of buckling-restrained round steel bar dampers to bolted beam-to-column connections. The configuration of the proposed connection and its design method are first described. Then, cyclic loading tests of six specimens are presented to clarify the structural performance of the proposed connection. The hysteretic behavior is largely influenced by the configuration of the damper, such as bar length, shank diameter, and damper position. Furthermore, finite element analyses of the damper and connection models are demonstrated for the detailed examination of their plastic behavior characteristics such as the spiral buckling deformation of the bar. The ratio of the beam shear force acting on the dampers is discussed based on the analysis results of the connection model.

中文翻译：

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带屈曲约束圆钢阻尼器的螺栓梁柱连接

摘要 在钢结构框架设计中，梁柱连接的确定需要综合考虑，因为梁柱连接的特性在很大程度上影响着整个框架的性能。一些研究人员最近的研究调查了阻尼器在螺栓梁柱连接中的应用，其中阻尼器通常位于底部梁翼缘和柱之间。本研究调查了屈曲约束圆形钢筋阻尼器在螺栓梁柱连接中的应用。首先描述了所提出的连接的配置及其设计方法。然后，提出了六个试件的循环载荷试验，以阐明所提出的连接的结构性能。滞后行为在很大程度上受阻尼器配置的影响，例如杆长度、柄直径和阻尼器位置。此外，还展示了阻尼器和连接模型的有限元分析，以详细检查它们的塑性行为特征，例如钢筋的螺旋屈曲变形。根据连接模型的分析结果，讨论了作用在阻尼器上的梁剪力比。