• 2022-06-30
    图(a)示结构用位移法求解时基本结构如图(b),则基本方程中的主系数K11为:(a) (b) [img=276x251]1802d8ed6be2736.png[/img] [img=274x249]1802d8ed768d25b.png[/img]
    A: [img=49x25]1802d8ed7e86279.png[/img]
    B: [img=58x25]1802d8ed87d0818.png[/img]
    C: [img=58x25]1802d8ed90d1e48.png[/img]
    D: [img=58x25]1802d8ed99247dd.png[/img]