【判断题】【消耗次数:1】
某荷载作用下桁架可能存在零杆,它不受内力,因此在实际结构中可以将其去掉。( )
正确
错误
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相关题目
【判断题】 桁架中的零力杆既然不受力,在实际结构中可以去掉。()
①  正确
②  错误
【判断题】 桁架中内力为零的杆件称为零杆。
①  正确
②  错误
【判断题】 零杆不受力,所以它是桁架中不需要的杆,可以撤除。
①  正确
②  错误
【单选题】 超静定结构在荷载作用下的内力和位移计算中,各杆的刚度为()。
①  均用相对值
②  均必须用绝对值
③  内力计算用绝对值,位移计算用相对值
④  内力计算可用相对值,位移计算须用绝对值
【判断题】 桁架中的零杆由于内力为零,所以此处杆件可有可无,可以去除以减轻自重。()
①  正确
②  错误
【判断题】 超静定结构在荷载作用下的反力和内力,只与各杆件刚度比值有关。
①  正确
②  错误
【单选题】 在单位荷载作用下,静定结构内力影响线的形状为()
①  分段直线
②  分段曲线
③  直杆结构时为直线,曲杆结构时为曲线
④  说不清
【判断题】 超静定结构在荷载作用下,其内力与各杆件EI的具体数值无关,只与各杆EI的比值(相对刚度)有关。()
①  正确
②  错误
【单选题】 对称结构在反对称荷载作用下,内力图中为正对称的是( )。
①  弯矩图
②  轴力图
③  弯矩图、剪力图和轴力图
④  剪力图
【单选题】 对称结构在反对称荷载作用下,内力图中为正对称的是( )。
①  剪力图
②  弯矩图、剪力图和轴力图
③  轴力图
④  矩图
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①  So is it
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①  answer for
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①  means
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