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一种桥梁构件刚度利用有限权量进行平差的最小二乘解模态识别方法

, PP. 110-114

Keywords: 桥梁构件刚度,有限权量平差,最小二乘解,模态识别方法

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Abstract:

提出一种利用桥梁低阶模态测试结果对桥梁结构抗弯刚度采用有限权量进行间接平差的最小二乘解识别方法。通过对1座3跨变截面连续箱梁实桥梁体抗弯刚度结合桥梁现场检测及数值模拟计算识别结果表明,此方法对于多种测试误差表现相当稳定,可满足工程精度要求。

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