A detailed connection model can take into account effects such as strength and stiffness degradation, pinching and brittle behavior while a simple one cannot. This study investigates the effects of using the detailed and simple connection models on the seismic behavior of steel moment resisting frame (MRF) buildings. The frame models designed by 1994 UBC and 2000 IBC provisions involved the use of clear length dimensions of elements, panel zone models, and connection models subjected to suites of 20 accelerograms with 50/50, 10/50 and 2/50 hazard levels. The interstory drifts, column axial forces, and probability of building failure were investigated. The results show that the discrepancy of the building behaviors between using the detailed and simple connections became larger when the more severe seismic hazard levels and higher percentile values were considered. Therefore, the detailed connection models would be recommended to evaluate and predict seismic performance of steel MRF buildings.

中文翻译：

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用简单详细的连接模型评估MRF钢结构房屋的地震需求

详细的连接模型可以考虑强度和刚度下降，挤压和脆性等影响，而简单的连接模型则不能。这项研究调查了使用详细而简单的连接模型对抗弯矩框架（MRF）建筑抗震性能的影响。由1994 UBC和2000 IBC规定设计的框架模型涉及使用清晰尺寸的元素，面板区域模型和连接模型，这些模型受20个加速度图套件的危害等级为50 / 50、10 / 50和2/50的影响。研究了层间位移，柱轴向力和建筑物破坏的可能性。结果表明，当考虑到更严重的地震危险等级和更高的百分位数时，使用详细连接和简单连接之间的建筑行为差异变得更大。因此，将建议使用详细的连接模型来评估和预测MRF钢结构房屋的抗震性能。