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埋置基础扭转振动的实用化计算

, PP. 167-171

Keywords: 块体基础,扭转振动,弹性半空间,方程对等法,动力响应。

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Abstract:

根据弹性半空间理论及基础振动试验和数值计算的最新成果,采用方程对等法推演出埋置块体基础扭转振动的实用化计算公式。采用该实用化计算公式和弹性半空间理论分别对复杂形状的埋置块体基础在谐和扰力矩作用下的扭转振动动力响应进行计算,并将计算结果进行了比较,两者结果吻合,振幅误差为9.13%。该实用化计算公式具有概念明确,计算简单的优点,对于任意形状、任意埋置状况的动力设备块体基础都实用,对于结构工程的地震响应计算具有参考意义。

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