A shear tab connection is one of the most common simple beam-to-column connections that is widely used in steel structures. In ASCE41-17 (Seismic evaluation and retrofit of existing buildings, American Society of Civil Engineers, 2017) and DoD (UFC 4-023-03, Design of buildings to resist progressive collapse, Department of Defense, Washington, DC, 2009), the plastic rotation capacity of a shear tab connection is purely a function of the connection depth, which is over- and under-estimated, respectively. To address this shortcoming, the present paper tries to provide a better estimation of plastic rotation capacity under the column removal scenario by employing a validated finite element model and conducting a comprehensive parametric study under various effective parameters such as connection depth, adjacent span length, and connection plate thickness. In addition to improving the plastic rotation capacity relationship, since the connection depth and adjacent span length have a significant effect on the plastic rotation capacity of the connection, a new equation has been proposed in terms of these parameters. Also, the axial-shear force–bending moment interaction of the connection is investigated.

剪力板连接是钢结构中最常见的简单梁柱连接之一。在 ASCE41-17（现有建筑的抗震评估和改造，美国土木工程师学会，2017 年）和 DoD（UFC 4-023-03，抗渐进性倒塌建筑设计，国防部，华盛顿特区，2009 年）中，剪切板连接的塑性旋转能力纯粹是连接深度的函数，连接深度分别被高估和低估。为了解决这一缺点，本文试图通过采用经过验证的有限元模型，并在连接深度、相邻跨长度、和连接板厚度。除了改善塑性旋转能力关系外，由于连接深度和相邻跨长对连接的塑性旋转能力有显着影响，因此根据这些参数提出了一个新的方程。此外，还研究了连接的轴向剪切力-弯矩相互作用。