The plastic hinges in the column end leaded to limit rupture of frame structure, and they were important characteristics of beam-hinge failure mechanism on frame structures.

• 摘要柱端塑性铰是框架结构梁铰破坏机制的一个重要特征。钢管混凝土框架结构极限破坏是由柱端塑性铰导致的。