大跨径连续梁结构单元抗弯刚度识别方法探讨

文章提出一种改进的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（γ-LSE法），通过对多座大跨径连续梁桥梁抗弯刚度进行数值模拟识别，将其与常规的最小二乘法（LSE法）的识别结果精度进行了分析与比较。结果表明（γ-LSE法能有效满足工程精度要求，可进行推广应用。

Discussions on Bending Rigidity Identification Methods of Large Span Continuous Beam Structural Unit

：This article proposed an improved least squares solution identification method（7- LSE method） for the finite power adjustment on the bending rigidity of bridge members, through the numerical sim-ulation identification on t~ bending rigidity of several large-span corfdnuous beam bridges, and it was analy-z~ and compared with the identification result accuracy of conventional least squares method （LSE method）. The results showed that -LSE method can effectively meet the r~luire-ments of engineering precision, therefore which can be widely applied and promoted.