连续钢桁梁桥的损伤诊断分析  

Analysis of Damage Diagnosis of Continuous Steel Truss Bridge

作　　者：魏保立[1] 董晓马[1] 魏锦辉[1] 

机构地区：[1]郑州航空工业管理学院土木建筑工程学院,郑州市450012

出　　处：《公路》2010年第7期1-4,共4页Highway

摘　　要：针对连续钢桁梁桥进行动力特性分析,结合神经网络以频率和振型动力特性参数对连续钢桁梁进行了损伤辨识、损伤定位和损伤标定,并对损伤诊断结果进行了讨论,指出三阶段诊断方法在复杂桥梁损伤诊断中具有实际意义。In this paper, the dynamic characteristics of continuous steel truss bridge are analyzed. The damage detetion of continuous steel truss bridge combined with neural network and natural frequency and vibration mode is carried out. The results of damage diagnosis are discussed. It is pointed out that threestep damage diagnosis method for large and complex bridge has its practical significance.

关 键 词：连续钢桁梁桥 动力特性 神经网络 损伤诊断 

分 类 号：U441.4[建筑科学—桥梁与隧道工程]