• 2022-07-28
    梁B端弹簧支座刚度系数为k,梁抗弯刚度EI为常数。图示解除约束,建立力法正则方程正确的是( )[img=395x75]1802f8d96e4508c.jpg[/img]
    A: [img=199x60]1802f8d97a221a2.jpg[/img]
    B: [img=178x63]1802f8d983d7f7d.jpg[/img]
    C: [img=160x44]1802f8d98e315a0.jpg[/img]
    D: [img=148x63]1802f8d998ce066.jpg[/img]