Finally, comparing the stress concentration factor, joints destroy model under different kinds of loads, the utilize of ring stiffeners, the increase of capability in Y-joints, K-joints, KK-joints.

• 最后,对Y形、K形、KK形加强环节点,在应力集中因子、节点在不同载荷类型下的破坏模式、不同宽度加强环在节点承载力中的利用效果、不同加强环对节点承载力提高几个方面进行了比较。