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钢筋混凝土桥墩开裂刚度计算

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Keywords: 钢筋混凝土墩柱,开裂刚度,整体刚度,力-位移曲线

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Abstract:

以基本的力学理论为依据,对双筋矩形截面混凝土墩柱的受力模式进行简化,通过力学平衡方程,从理论上分析了墩柱受力过程中开裂区域的刚度。在此基础上,引入了三段式的概念,并通过三段式思想推算出截面刚度的简化公式。根据简化公式计算出力-位移曲线,继而推算出混凝土墩柱整体刚度。

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