结构健康监测技术在超大跨城市钢箱梁高架桥变形监测中的应用  

THE APPLICATION OF STRUCTURE HEALTH MONITORING TECHNOLOGY IN LONG SPAN CITY VIADUCT STEEL BOX GIRDER'S DEFORMATION MONITORING

作　　者：侯华东 苏小梅[2] 丁勇[3] 吴清 

机构地区：[1]武汉一冶钢结构有限责任公司,武汉430080 [2]武汉城市职业学院,武汉430064 [3]南京理工大学土木工程系,南京210094

出　　处：《钢结构》2013年第12期55-59,共5页Steel Construction

摘　　要：大跨径桥梁的轻柔化及形式与功能的复杂化,使桥梁结构健康监测技术成为国内外工程界的研究热点。通过在L32联钢箱梁内部布设分布式监测光纤,构建神经网络式桥梁智能监测系统,实现城市大跨度钢箱梁桥梁受力变形状态的在线安全监测;并通过及时处理分析监测数据,随时掌握桥梁的安全状况,能够实现长期运营阶段的在线监测。Long-span bridges＇ s softening, complicated form and function make the bridge structural health monitoring technology be a research focus in domestic and foreign engineering sector. According to the distribution of the monitoring optical fiber in L32 steel box girder, a neural network-bridge intelligent monitoring system was set up to realize the online safety monitoring of the forced deformation of long span steel box beam bridge in a city. Through timely processing and analysing the monitoring data, the security situation of the bridge in any time could be grasped,which could be able to achieve on-line monitoring of the long-term operational phase.

关 键 词：健康监测技术 超大跨度 钢箱梁 变形监测 

分 类 号：U446[建筑科学—桥梁与隧道工程]