钢结构框架设计中节点域问题的探讨

RESEARCH ON THE PERFORMANCE OF NODE DOMAIN OF STEEL FRAMEWORK

在强震作用下,钢框架的梁柱刚接节点易发生破坏,尤其是在弹塑性阶段,节点域剪切变形明显增大,为满足强节点弱构件的设计原则,应对节点域进行处理。一般情况下,采用在节点域腹板两面或单面贴钢板的方法补强节点域厚度,同时,节点域上下的加劲肋和侧向支承也必须设置。焊缝的施工质量非常重要。

In strong earthquake, the rigid beam-column node of steel framework is prone to damage, especially in elastic-plastic stage, the node domain shear deformation increases markedly. In order to follow the design principle of " strong node and weak member", the node domain should be processed. Usually steel plates are affixed on one side or both sides of the web plate to increase the thickness of node domain, and stiffening rib and lateral support should also be set up on top or bottom of the node domain. Const...