三铰拱刚架如图所示,受一力偶作用,其矩M=50kN·m,不计自重,试求A、B处的约束反力。 [img src="https://img.haodaxue.net/uploadimg/image/20200721/20200721094112_22471.png" alt="" />
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正确答案: [img src="https://img.haodaxue.net/uploadimg/image/20200721/20200721094156_28381.png" alt="" /> [img src="https://img.haodaxue.net/uploadimg/image/20200721/20200721094220_47358.png" alt="" /> 答案分析:无
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