图示三根压杆均为细长(大柔度)压杆,且弯曲刚度均为EI。三根压杆的临界荷载Fcr

天天题库2019-12-17  27

问题 图示三根压杆均为细长(大柔度)压杆,且弯曲刚度均为EI。三根压杆的临界荷载Fcr的关系为:

选项 A. Fcra>Fcrb>FcrcB.Fcrb>Fcra>FcrcC. Fcrc>Fcra>FcrbD.Fcrb>Fcrc>Fcra

答案C

解析[img]/upload/tiku/212/2688340_1.jpg[/img]
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