A key component of steel structural design is the careful selection of structural modeling joints in steel structures, as the behavior of the joints affects the structure's strength and displacement characteristics. According to the capacity for transferring moment, connections in the analysis of frames are categorized as rigid, semi-rigid, or pinned. Also, the response modification factor (R-factor) is an effective parameter used in the seismic design of structures. However, the influence of the beam-column connection's stiffness factor on the response modification factor did not seem to have been considered in seismic design codes. Consequently, the R-factor under static pushover and dynamic loading is being studied for moment-resisting steel frames (MRSFs) with 3-, 6-, and 12-story using three different forms of beam-column connections depending on the connections' stiffness (m). The rigidities of the connections are taken 20, 10, and 5 for rigid, stiff semi-rigid, and flexible semi-rigid connections, respectively. The MRSFs are subjected to ten records with varying frequency contents and ground motion durations. The ductility reduction factor (R_μ), the over-strength reduction factor (R_o), and the R-factor were determined. The results indicated that the beam-column connection rigidity factors affected the R₀, R_μ, and R-factors. Also, the R-factors were more affected by the rigidity factors for the beam-column connections and the number of story frames.

钢结构设计的一个关键组成部分是仔细选择钢结构中的结构建模节点，因为节点的行为会影响结构的强度和位移特性。根据传递力矩的能力，框架分析中的连接分为刚性、半刚性或销接。此外，响应修正因子（R 因子）是结构抗震设计中使用的有效参数。然而，抗震设计规范似乎并未考虑梁柱连接刚度系数对响应修正系数的影响。因此，正在研究 3 层、6 层和 12 层抗弯钢框架 (MRSF) 在静态推覆和动态载荷下的 R 系数，根据连接刚度使用三种不同形式的梁柱连接（米）。对于刚性、刚性半刚性和柔性半刚性连接，连接刚度分别取 20、10 和 5。MRSF 受到十个具有不同频率内容和地面运动持续时间的记录的影响。确定延展性折减系数 (R _μ )、超强折减系数 (Ro ₎和 R 系数。结果表明，梁柱连接刚度系数影响R ₀、R _μ和R 系数。此外，R 因子更受梁柱连接刚性因子和层框架数量的影响。