The simplified expression of plastic hinge is presented on the basis of existing equations.

综合比较梁、柱的塑性铰公式，建立简化塑性铰长度表达式；

The position of plastic hinge will effect the direction and ability of moment redistribution.

预应力框架中塑性铰形成的位置不同，弯矩重分布的方向和能力也不相同。

Studies indicate that the connection with welded haunch shifts plastic hinge away from the face of the column.

加腋型节点的塑性铰在远离柱翼缘面的梁上形成。

In order to improve the inadequacy of the current strut model, a more reasonable model is applied based on the mid-strut plastic hinge theory.

针对目前杆件力学模型存在的不足，基于杆中部塑性铰模型的思想提出了一个更加合理的力学模型。

According to capacity design philosophy, brittle shear failure inside ductile members must be inhibited, to insure adequate rotation capacity of the plastic hinge.

按照能力设计思想，必须防止延性构件内部发生脆性剪切破坏，以确保塑性铰的转动能力。