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Least-square Identification Method for Long-span Continuous Beam Structural Rigidity
Author(s): 
Pages: 77-79
Year: Issue:  2
Journal: CHINA MUNICIPAL ENGINEERING

Keyword:  大跨径连续梁构件刚度有限权量平差识别方法;
Abstract: 提出了一种利用低阶模态测试对桥梁构件抗弯刚度进行有限权量平差的最小二乘解识别方法.通过对主跨110 m的3跨变截面连续箱梁广州大桥实桥梁体抗弯刚度进行数值模拟识别及结合桥梁现场动静载试验进行识别,表明此方法利用现有的测试技术对大跨径连续梁桥进行抗弯刚度识别,可获得较好的工程精度.
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