• 2021-04-14
    图a所示梁的剪力图,竖标b/l是截面C左的剪力值,图b是截面C的剪力影响线,竖标-a/l也是表示在移动荷载下截面C左的剪力值。( )http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/5b8a7353b74f4da1aaaf1f8a68705a46.jpg