【单选题】【消耗次数:1】
如果结构对称、荷载反对称,则轴力图、弯矩图反对称,剪力图对称,在对称轴上轴力、弯矩均为( )。
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相关题目
【单选题】 如果结构对称、荷载反对称,则轴力图、弯矩图反对称,剪力图对称,在对称轴上轴力、弯矩均为零。( )
①  正确
②  错误
【单选题】 轴力和弯矩是对称内力,剪力是反对称内力。( )
①  正确
②  错误
【判断题】 若在结构对称的梁上作用有反对称载荷,则该梁具有对称的剪力图和反对称的弯矩图。
①  正确
②  错误
【单选题】 对称结构在反对称荷载作用下,内力图中为正对称的是( )。
①  弯矩图
②  轴力图
③  弯矩图、剪力图和轴力图
④  剪力图
【单选题】 对称结构在反对称荷载作用下,内力图中为正对称的是( )。
①  剪力图
②  弯矩图、剪力图和轴力图
③  轴力图
④  矩图
【判断题】 对称结构在正对称荷载作用下,其内力和位移都是正对称的,且在对称轴上反对称的多余力为零。( )
①  正确
②  错误
【判断题】 对称结构绕对称轴对折后,对称轴两边的荷载等值、作用点重合、同向视为对称荷载。
①  正确
②  错误
【单选题】 如果结构对称、荷载对称,则( )对称。
①  应力
②  截面
③  剪力图
④  弯矩图
【判断题】 对称轴的对称操作是反演
①  正确
②  错误
【单选题】 图4对称刚架,在反对称荷载作用下,正确的半边结构图号为( )。图4
①  图a
②  图b
③  图c
④  图d
随机题目
【单选题】 This house will probably come on the ____ next month.
①  fair
②  market
③  shop
④  store
【单选题】 I’m sure your suggestion will ____ the problem.
①  contribute to solving
②  be contributed to solve
③  contribute to solve
④  be contributed to solving
【单选题】 ____ before, his first performance for the amateur dramatic group was a success.
①  Though having never acted
②  As he had never acted
③  Despite he had never acted
④  In spite of his never having acted
【单选题】 “If we fail to act now,” said Tom, “We’ll find ourselves ____ in action later on.”
①  paid back
②  paid for
③  paid up
④  paid off
【单选题】 The statement had to be delivered to someone who could ____ it to the press.
①  relieve
②  release
③  emit
④  discharge
【单选题】 When the idea of winning in sports is carried to excess, ____ competition can turn into disorder and violence.
①  honestly
②  honest
③  honorable
④  honorary
【单选题】 He had acquired a(n)____ command of the English language.
①  ordinary
②  immense
③  extraordinary
④  temporary
【单选题】 Danny left this ____ message on my answering machine: “I must see you. Meet me at twelve o’clock.” Did he mean noon or midnight?
①  ambiguous
②  responsible
③  implicit
④  thoughtful
【单选题】 — May I stop here? —No, you_____.
①  mustn’ t
②  might not
③  needn’ t
④  won’ t
【单选题】 Our ____ sensitivity decreases with age. By age 60, most people have lost 40 percent of their ability to smell and 50 percent of their taste buds.
①  sensible
②  senseless
③  sensitive
④  sensory