图示结构中,a杆的轴力为:()<img src='https://img2.soutiyun.com/shangxueba/ask/17733001-17736000/17734986/2015102815093170242.jpg' />
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图示组合结构,其中受弯杆件的抗弯刚度EI=常量,二力杆的抗拉刚度EA=常量,在水平荷载F作用下,对称轴线上杆件EF的轴力为()。https://assets.asklib.com/psource/2015110415291554446.png
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图示组合结构,其中受弯杆件的抗弯刚度EI=常量,二力杆的抗拉刚度EA=常量,在水平荷载F p 作用下,对称轴线上杆件EF的轴力为()。 https://assets.asklib.com/psource/2016071810253679031.jpg
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图示结构中,a杆的轴力N A 为:() https://assets.asklib.com/psource/2016071810532653932.jpg
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图示桁架结构杆①的轴力为:()https://assets.asklib.com/psource/2016071810483259625.jpg
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图示桁架中a杆的轴力N a 大小为:() https://assets.asklib.com/psource/2015102815100448612.jpg
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图所示桁架,杆①的轴力为()。<img src='https://img2.soutiyun.com/shangxueba/ask/2013001-2016000/2014868/ct_jgzjgyxm_jgzjgyxchoose_00413(20093).jpg' />
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