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地震作用下土工格栅加筋土挡墙水平变形的拟静力计算法

, PP. 28-34

Keywords: 道路工程,土工格栅加筋土挡墙,瑞利-里兹法,拟静力法,水平变形,地震

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Abstract:

?为了研究加筋土结构地震水平变形的理论计算方法,将加筋土挡墙结构等效成水平向同性的竖直弹性梁,根据瑞利-里兹法推导出静力作用下加筋土挡墙水平位移计算法,在此基础上利用拟静力法推导出地震作用下加筋土挡墙的地震水平变形理论计算公式;并采用工程案例和大型振动台模型试验的测试值验证理论计算方法的合理性.案例和试验模型的比较结果表明:推导出的理论计算方法可以合理地计算出土工格栅加筋土挡墙的地震水平变形,可为土工格栅加筋墙体工程的抗震安全设计提供理论依据.

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