论文部分内容阅读
目的研究蜂窝式钢框架梁柱节点的静力性能,为蜂窝钢框架在工程中的应用提供参考依据.方法通过对3个节点域不带孔的蜂窝式梁柱节点和1个实腹式梁柱节点进行对比分析,研究六边形蜂窝节点的扩高比K=1.5时,第一个开孔中心到柱外翼缘的距离d和柱上第一个开孔中心到梁上翼缘的距离e对蜂窝节点的破坏形态和极限承载力的影响.结果对于蜂窝式钢框架梁柱节点,改变参数d可以使蜂窝节点的破坏由节点域转变为梁上蜂窝孔处的截面破坏,改变参数e可以避免蜂窝钢框架节点在柱上发生剪切破坏.建议d取(1.0～2.2)Hb,e取(1.5-2)Hc.结论通过改变d和e的取值可以控制塑性铰的位置,避免节点发生脆性破坏.
Aim To study the static behavior of the beam-column joints of honeycomb steel frames and to provide a reference for the application of honeycomb steel frames in engineering.Methods Three honeycomb beam-column joints with no holes and one solid-abdominal beam Column node comparative analysis to study the hexagonal honeycomb node expansion ratio K = 1.5, the distance between the center of the first hole to the outer flange d and the distance from the center of the first hole on the column to the flange on the beam e On the failure morphology and ultimate bearing capacity of the honeycomb nodes.Results For the beam-column joints of the honeycomb steel frame, changing the parameter d can change the destruction of the honeycomb nodes from the node domain to the destruction of the cross-section at the honeycomb holes on the beam. Changing the parameter e can It is suggested that d (1.0 ~ 2.2) Hb and e (1.5-2) Hc be taken as a conclusion. By changing the values of d and e, we can control the position of the plastic hinges and avoid the nodes Brittle destruction occurred.