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:
A.Fcra>Fcrb>Fcrc B.Fcrb>Fcra>Fcrc C.Fcrc>Fcra>Fcrb D.Fcrb>Fcrc>Fcra正确答案C
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:
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:
A.Fcra>Fcrb>Fcrc B.Fcrb>Fcra>Fcrc C.Fcrc>Fcra>Fcrb D.Fcrb>Fcrc>Fcra正确答案C