欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
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。
英文摘要：
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 classified by using the mean value control chart. The annual variances of south and north beam end displacements caused by temperature are 38.8 cm and 37.4 cm respectively. The mean value control chart can exhibit good capability for detecting the damage-induced 0.8 cm variances of beam end displacement. The result reveals that the proposed method can effectively eliminate temperature influence from displacement and identify the abnormal change of displacement caused by structural damage.
同期刊论文项目
同项目期刊论文
Research on seasonal correlation of wavelet packet energy spectrum and temperature of Runyang Suspen
Temperature-induced variations of measured modal frequencies of steel box girder for a long-span sus
Assessment of bridge expansion joints using long-term displacement measurement under changing enviro
Accurate stress analysis on steel box girder of long span suspension bridges based on multi-scale su
Characteristics of strong winds at the Runyang Suspension Bridge based on field tests from 2005 to 2
Study on correlations of modal frequencies and environmental factors for a suspension bridge based o
Field measurement on wind characteristic and buffeting response of the Runyang Suspension Bridge dur
Environmental variability study on the measured responses of Runyang Cablestayed Bridge using wavele
Experimental and analytical studies on static and dynamic characteristics of steel box girder for Ru
位置：