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中、下承式拱桥吊索张力测定的振动法实用公式

, PP. 66-70

Keywords: 桥梁工程,中、下承式拱桥,振动法,吊索张力

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Abstract:

?考虑吊索弯曲刚度和两端固定边界条件的影响,引入参数简化吊索张力与其横向振动频率之间关系的超越方程,采用数值计算和曲线拟合的方法,推导出了考虑吊索弯曲刚度和吊索两端边界条件影响的,由吊索振动频率计算吊索张力的实用计算公式,并将该公式运用于下承式拱桥施工现场吊索张力的测定。通过与现场实测数据的比较表明:该公式具有较高的精度和一定的实用价值。

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