对6个T形截面柱框架节点试件进行了试验，分别以梁截面高度、柱轴压比和节点区水平箍筋体积配箍率为变量参数，研究了节点区裂缝的形成与开展、节点的破坏机理；提出在低周期反复荷载作用下T形柱框架节点的裂缝呈反“K” 型，而不是类似于常规矩形节点的“X”型交叉裂缝，其受力机理偏于较陡的斜压杆受力模型；运用大型通用有限元软件ANSYS的二次开发语言APDL对T形截面柱节点进行非线性有限元分析，结果表明离散型非线性有限元模型计算结果与试验结果有很好的吻合。改变有限元程序参数使节点发生核心区剪压破坏，对节点裂缝的形成与开

The paper makes experiment about six T-shaped cross section column frame joints under low periodic cycle loads.  The paper uses variable parameters of beam section height,  the axis-pressed ratio and the volume ratio of hoop reinforcement to research cracks formation and development and the failure mechanism of the joints.  The paper points out that joints'crack shape appears as reverse "K"  but not the common rectangular joints' "X"  shape, and the endure mechanism is inclined to the steep press-pole mechanism.  At the same time,  this paper makes use of a software ANSYS to develop the language APDL two times to T-shaped column joints to carry on nonlinear finite element analysis,  adopts discrete cracking model smeared cracking model,  and carries on the contrast analysis with experiment result.  Analysis enunciates that nonlinear finite element analysis calculation results fit in aill with experiment result.  The paper changes procedure parameters to cause the core area shear-press breakage,  and to do further argument about the formation of the joints crack and the joints failure mechanism.