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

shuhaiku2020-05-20 12

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/131/296052_1.jpg[/img]

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