不等线刚度比、非对称荷载作用下框架结构的稳定

Stability of Frame Structures under Different Line Stiffness Ratio and Asymmetric Loads

工程中大多框架结构都具有非等梁柱刚度比且处于非对称荷载的作用下。利用矩阵位移法推导了不等梁柱线刚度比、非对称荷载作用下框架结构适应性稳定方程、讨论了结构的临界荷载和长度因数的变化规律,并给出了将框架结构离散为杆系结构的条件。补充了文献[1]对非对称荷载和刚度考虑的不足。

The most frame structures in engineerings have different line stiffness ratio and are effected by asymmetric loads.Here the adaptability stability equation of frame structures is deduced under the different line stiffness ratio and asymmetric loads,the change rule of the critical load and length factor is discussed,and the conditions of conversion between frame structure and rod structure are given.