| 基于信赖域算法的板梁桥横向连接刚度的参数识别 |
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| 引用本文： | 窦勇芝,王复明,蔡迎春.基于信赖域算法的板梁桥横向连接刚度的参数识别[J].结构工程师,2006,22(6):25-29. |
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| 作者姓名： | 窦勇芝 王复明 蔡迎春 |
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| 作者单位： | 1. 河北省道路桥梁检测中心,石家庄,050021
2. 郑州大学环境与水利学院,郑州,450002 |
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| 摘 要： | 文结合有限元模型修正技术，通过ANSYS有限元程序进行桥梁结构的有限元建模，引入信赖域算法调整参数，实现了对空心板桥铰缝横向连接刚度的参数识别，数值算例表明该方法能正确、有效地进行桥梁结构的有限元模型的参数识别，并有一定的抗噪声能力。
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| 关 键 词： | 信赖域算法 板粱桥 铰缝 参数识别 |
Parameter Identification of Transverse Coupling Stiffness for Plate Girder Bridges Based on Trust Region Algorithm |
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| DOU Yongzhi,WANG Fuming,CAI Yingchun.Parameter Identification of Transverse Coupling Stiffness for Plate Girder Bridges Based on Trust Region Algorithm[J].Structural Engineers,2006,22(6):25-29. |
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| Authors: | DOU Yongzhi WANG Fuming CAI Yingchun |
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| Affiliation: | 1. Hebei Engineering Technology Center for Road and Bridge Detective, Shijiazhuang 050021, China 2. School of Environment and Water conservancy, Zhengzhou University, Zhengzhou 450002, China |
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| Abstract: | The technology of finite element model updating is applied to solve the problem. By calling subprogram of ANSYS and using trust region algorithm, plate girder bridges is realized. The effectiveness, are verified by a numerical example. parameter identification of transverse coupling stiffness of correctness and better ability to resist measurement noises are verified by a numerical example. |
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| Keywords: | trust region algorithm plate girder bridge hinged joint parameter identification |
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