• 2022-06-19
    图示桁架,EA为常数,结点D的水平位移为:[img=241x134]1802d58c180baba.png[/img]
    A: [img=53x44]1802d58c1fe84a1.png[/img]
    B: [img=62x44]1802d58c29ca7b4.png[/img]
    C: 0
    D: [img=59x44]1802d58c3240042.png[/img]