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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？
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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？
时间：2021-09-02 18:08
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钢结构设计原理
机械工程
大学试题
工学
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<p> （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<br> （2）控制其长细比小于容许值<br> （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。<br> </p>
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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？
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