| 大跨悬索桥梁端位移与温度的相关性研究及其应用 |
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| 引用本文： | 邓扬,李爱群,丁幼亮.大跨悬索桥梁端位移与温度的相关性研究及其应用[J].公路交通科技,2009,26(5). |
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| 作者姓名： | 邓扬 李爱群 丁幼亮 |
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| 作者单位： | 东南大学土木工程学院,江苏,南京,210096 |
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| 基金项目： | 国家自然科学基金，国家杰出青年科学基金，教育部博士点基金新教师项目 |
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| 摘 要： | 对润扬大桥悬索桥160d的梁端位移响应与钢箱梁温度实测数据进行了季节相关性研究，并应用于结构的整体状态监测。针对润扬大桥悬索桥梁端位移与温度之间明显的季节相关性，采用6次多项式模型对梁端位移-温度进行了统计建模，并采用均值控制图法对梁端位移的异常变化进行了判别分类。主梁南北端由于温度引起的梁端位移年变化幅度分别为38．8、37．4cm，而采用均值控制图法可以识别出由于结构损伤所引起的梁端位移0．8cm的异常变化。结果表明，本文方法可以有效地消除温度的季节变化对悬索桥实测梁端位移的影响，较好地识别出结构损伤引起梁端位移的异常变化。
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| 关 键 词： | 桥梁工程 悬索桥 梁端位移 季节相关性 结构异常状态 |
Research and Application of Correlation between Beam End Displacement and Temperature of Long-span Suspension Bridge |
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| DENG Yang,LI Aiqun,DING Youliang.Research and Application of Correlation between Beam End Displacement and Temperature of Long-span Suspension Bridge[J].Journal of Highway and Transportation Research and Development,2009,26(5). |
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| Authors: | DENG Yang LI Aiqun DING Youliang |
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| Institution: | School of Civil Engineering;Southeast University;Nanjing Jiangsu 210096;China |
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| Abstract: | The seasonal correlation analysis between beam end displacement and temperature of Runyang Suspension Bridge was performed with regard to the 160 days health monitoring data,which was applied to the structural state monitoring.Aimed at the remarkable seasonal correlation of the bridge,the statistical technique based on 6-order polynomial was applied to simulate the correlation between the natural beam end displacement and temperature.The abnormal changes of beam end displacements were identified and classif... |
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| Keywords: | bridge engineering suspension bridge beam end displacement seasonal correlation structural abnormal state |
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