论文部分内容阅读
提出了一种端板型装配式钢结构梁柱节点,其由带悬臂梁段圆钢管柱、普通梁段及两者之间的连接装置组成。通过调整翼缘连接盖板的厚度、中间排螺栓间距等参数,可控制翼缘连接盖板处连接刚度的变化,从而利用翼缘连接盖板的变形进行耗能,确保梁柱等主要构件保持弹性不发生破坏,实现节点的震后快速修复。通过对6个节点的数值模拟研究,获得了节点的承载能力、破坏模式、构件应力及螺栓拉力变化等,分析了悬臂梁段翼缘厚度、悬臂梁段端板与普通梁段端板之间间隙、中间排螺栓间距、翼缘连接盖板厚度和翼缘连接盖板材料等参数对节点关键力学性能的影响规律。分析表明:通过合理设计螺栓及翼缘连接盖板相关参数可保证节点承载能力,确保梁柱等主要构件不发生破坏,实现节点的震后快速修复。
An end-plate-type fabricated steel structure beam-column joint is proposed, which is composed of a cantilever beam section circular steel column, a common beam section and a connection device between the two. By adjusting the thickness of the flange connection cover, the distance between the middle row of bolts and other parameters, can control the connection flange connection flange stiffness changes, so that the use of flange connection cover deformation energy consumption, to ensure that the main beam and other components to maintain Elasticity does not damage, to achieve rapid repair node after the earthquake. Through the numerical simulation of six nodes, the bearing capacity, failure mode, component stress and bolt tension change of the node were obtained. The thickness of the flange of the cantilever section, the gap between the end plate of the cantilever section and the end plate of the common beam section, , The thickness of the flange connection cover and the flange connection cover material parameters on the key mechanical properties of the law. The analysis shows that it is possible to ensure the bearing capacity of the joint by reasonably designing the relevant parameters of the bolt and flange connection cover to ensure that the main components such as the beam and column will not be destroyed and the node will be quickly repaired after the earthquake.