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13
˵13ԱȽϳ棺
102ĸհƣмǸհ壬Fȣ˵
2.ǻͼСļɣͼˡ
3.ӦӦ߾غΪ5kn/m,ұΪ10kn/mξ붼1.5mòơݲһͼӦǶԵġ
4.ͼΪLмΪˣ֪EAEI,A㴹ֱλơ
5.֪G=80,r=5X10^-4Ҹֱ֪Ӧ֮Ϊ27.5MpaӦ
6.12ƣͨάУˣҪõĵǿۣӣͼˡ
7.֪1.2ͬ״ߴȣ1.2ǾΪ30õF
8.ͼLxΪֵʱAֱλΪ0.
ƾ䣬˺üˣиݳ룬ϣﵽߣ˵13ԱȽϳ棺
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