【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、弯矩均为零。( )
正确
错误
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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( )。
①  3
②  1
③  2
④  0
【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
【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
【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】 We were all surprised when he made it clear that he _____________office soon.
①  leaves
②  would leave
③  left
④  had left
【单选题】 He _______ lives in the house where he was born.
①  already
②  yet
③  still
④  ever
【单选题】 I fell and hurt myself while I ________ basketball yesterday.
①  was playing
②  am playing
③  play
④  played
【单选题】 When father was young, he ______from morning till night.
①  was made work
②  was made working
③  made to work
④  was made to work
【单选题】 A pair of spectacles ________ what I need at the moment.
①  is
②  are
③  has
④  have
【单选题】 Well go for a picnic if it ________tomorrow.
①  isnt going to rain
②  wont rain
③  doesnt rain
④  isnt raining
【单选题】 He asked the waiter ________ the bill.
①  on
②  of
③  for
④  after
【单选题】 I forgot to return the book to you yesterday. So I _____________today.
①  might do it
②  must do it
③  had to do it
④  must have to do it
【单选题】 She wonders ____will happen to her private life in the future.
①  that
②  it
③  this
④  what
【单选题】 What ___the population of the USA?
①  is
②  are
③  have
④  has