Steel buildings with tubular columns showed a satisfactory performance during the Honshu (2011) earthquake, unlike steel buildings in the 1994 Northridge and 1995 Kobe earthquakes, where welded moment connections showed damage in their joints. In this research, a lateral joint using a hollow structural section (HSS)-beam and HSS-column subjected to cyclic displacement was performed. Three large-scale specimens were tested and a numerical model was calibrated, reaching a good adjustment. Later, several configurations of beams and columns were evaluated using finite element (FE) models from the numerical model previously calibrated. A flexural resistance higher 0.80 Mp at 0.04 [rad] was obtained for all cases studied. The ductility factor in the 3 specimens was lower than 2.5, therefore a non-ductile behavior was controlled in the connection. This aspect is very important although a 0.8 Mp at 0.04 [rad] was achieved. Finally, the typical welded moment connection can be improved using the bolted moment connection, which allows the concentration of inelastic incursion in the beam compared with the welded solution. However, a non-ductile behavior derived from local buckling in flanges of a tubular beam can affect the seismic performance.

中文翻译：

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空心截面梁-柱矩连接的循环特性：实验和数值研究

在本州（2011）地震中，带有管状圆柱的钢结构表现出令人满意的性能，与1994年Northridge和1995年神户地震中的钢结构不同，在焊接中，弯矩连接处的连接处受损。在这项研究中，进行了使用空心结构截面（HSS）梁和HSS柱进行周期性位移的横向连接。测试了三个大型标本，并校准了数值模型，达到了很好的调整效果。随后，使用有限元（FE）模型从先前校准的数值模型中评估了梁和柱的几种配置。在所有研究的情况下，均获得了0.04 [rad]时更高的抗弯强度0.80 Mp。3个样品的延展性因子低于2.5，因此控制了连接的非延展性。尽管在0.04 [rad]时达到了0.8 Mp，但这一方面非常重要。最后，典型的焊接力矩连接可以使用螺栓力矩连接来改进，与焊接解决方案相比，它可以使梁中的非弹性侵入集中。但是，由管状梁的凸缘中的局部屈曲引起的非延性行为会影响抗震性能。