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如何区分超静力结构和静力结构

更新时间: 2020-07-01 00:00:00     

超静定与静定结构就只有一个区别。静力结构的每个节点未知内力可以用平衡方程解出,而超静力结构的每个节点内力除了用静力平衡方程外,还有不能直接解出的内力,这些内力只能借助于材料力学的变位方程解出。有几个这样的内力就是几次超静力。

关键词: 如何 区分 结构

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