等截面连续受压直杆临界荷载的求解

SOLUTION OF CRITICAL LOAD OF CONTINUOUS STRUT WITH CONSTANT SECTION

利用材料力学、常微分方程及行列式知识,求解了连续受压杆率曲微分方程,计算了不同长度组合受压杆的整体临界荷载及计算长度系数,与钢结构设计中所采用的计算长度系数进行了对比分析。

The bending differential equation of a two span continuous strut was solvedUsing the knowledge of material mechanics,differential equation and determinantThe global critical load and the coefficient of calculation length of composite strut with different lengths were found out,which was compared with that of steel structure design method