Ultimate load designs according to the yield-line or strip methods do not guarantee safety against cracking or excessive deformation. 接屈服线法或条带法的极限荷载设计不能完全保证抗裂或防止过度变形。
A new flow rule was recommended, and it offered a new way for obtaining the approximate solution of the ultimate load with the theorem. 并建议了一种新的流动法则，对应用定理求极限荷载的近似解给出了新的解题思路。
The smallest load capable of maintaining the bar in a slightly bent form is called the critical or bucking load. 使杆保持稍微弯曲形状的最小载荷称为临界载荷或临界压曲载荷。
