The paper analyses the stability of rib slab on method of energy, the formula of longitudinal critical force is deduced, and rational arrangement of stiffening rib is discussed.
利用能量法分析了加肋平板的稳定问题，推导了纵向临界力的计算公式，并探讨加劲肋的合理布置。
Anew compensation method, 'Belated initial stress method', is developed for term of dynamic stiffening by synthesizing the existing method.
在综合现有方法的基础上提出了新的动力刚化项补偿方法—差时初应力方法。
Analyzed the structure characteristics and forming process of the stiffening plate of front-carling. According to the spring-back problem, proposed the rectification method.
分析了前纵梁后加强板的结构特点和成形工艺，针对回弹问题，提出了整改方法。
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