【判断题】【消耗次数：1】
平面两铰拱和无铰拱都是超静定结构。()
①
正确
②
错误
参考答案：
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相关题目
【单选题】
对于三铰拱结构，下面结论是正确的是（）。
①
在竖向荷载作用下，三铰拱的水平推力与矢高比成反比，且与拱轴线形状有关
②
当三铰拱的轴线为合理拱轴线时，那么在任意荷载作用下，拱上各截面都只承受轴力，弯矩为零
③
拱在均匀水压力作用下的合理拱轴线为抛物线
④
三铰拱在任意荷载作用下都存在与其相应的合理轴线
【单选题】
三铰拱的合理拱轴其各截面 （ ）
①
弯矩、剪力均较小，而轴力较大
②
弯矩、轴力均较小，而剪力较大
③
弯矩、剪力均等于零，只有轴力
④
弯矩、轴力均等于零，只有剪力
随机题目
【单选题】
10.We should see ourselves as part of nature rather than in ______ with it.
①
argument
②
connection
③
conflict
④
crash
【单选题】
14.Anyone can borrow magazines from the club ______ he returns them in a week.
①
as long as
②
so that
③
unless
④
as far as
【单选题】
9. They have ______ each other for a long time.
①
corresponded on
②
corresponded with
③
communicated with
④
kept writing
【单选题】
6.The old lady fainted on the street and found herself in the first aid room when she came_________.
①
across
②
over
③
in
④
to
【单选题】
In Britain, the season of the year is probably _____ spring.
①
later
②
last
③
latter
④
late
【单选题】
All _____ is peace and progress.
①
what is needed
②
for our needs
③
the thing needed
④
that is needed
【单选题】
_____ that my head had cleared, my brain was also beginning to work much better.
①
For
②
Now
③
Since
④
Despite
【单选题】
2. This machine is ______ being improved.
①
capable to
②
able of
③
able to
④
capable of