In the process of pseudo-static test, the stress of unbonded prestressed tendons is invariable approximately before the yielding of the specimens.

• 拟静力试验过程中，无粘结预应力混凝土扁梁框架节点试件在屈服之前，无粘结预应力筋的预应力值仅有微小波动，总的趋势是基本保持不变。