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拉杆为什么要控制刚度?如何验算?拉杆允许长细比于什么有关?

问答题
2021-09-02 18:08
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正确答案

(1)防止由于长细比过大在运输、施工过程中产生较大的变形,同时因自重作用产生较大挠度,对承受动力荷载的构件还将产生较大的振幅
(2)控制其长细比小于容许值
(3)允许长细比与构件类型的重要性、承受荷载的性质和截面的类型有关。
 


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