石济客专济南黄河桥健康监测系统总体设计
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摘要
研究目的:随着高速铁路大型桥梁的快速建设,铁路大型桥梁的健康监测愈来愈成为高速铁路运营安全及检修维护的重要保障。石济黄河公铁两用桥为(128+3×180+128) m刚性悬索加劲钢桁梁结构体系,本文结合该桥的结构特点及运营养护维修需求,研究该桥健康监测系统的设计方法。在结构静动力分析的基础上,提出监测内容及设计原则,全桥布置157个测点,桥上及监控中心设备总数397台。对传感器子系统、数据采集与传输子系统、数据处理与控制子系统、中心数据库子系统、结构安全预警与分析子系统及用户界面子系统六大子系统进行详细设计,探索健康监测系统在铁路大跨桥梁上应用的可行性,从而为铁路桥梁开展长期健康监测奠定基础。研究结论:(1)铁路桥梁健康监测系统布点设计需同时考虑静态及动态监测指标,并与成桥静载、动载试验相结合;(2)传感器选型要遵循耐久可靠、技术先进、方便更换维护及经济合理的原则;(3)数据采集及传输宜采用光纤环网进行组网设计,监控中心宜设置在铁路局工务段调度中心,便于养护维修与设备管理;(4)预警指标的确定应结合铁路设计、检定规范以及运营阶段计算承载力共同确定;(5)本研究成果可在铁路大跨桥梁健康监测项目中推广应用。
Research purposes: With the rapid construction of high-speed railway bridges,the health monitoring of railway bridges has become an important guarantee for the operation safety and maintenance of high speed railways. The Yellow River Bridge of Shijiazhuang to Jinan is a( 128 + 3 × 180 + 128) m rigid suspension cable stiffening steel truss structure system. This paper studies the design method of health monitoring system based on the structural characteristics of the bridge and the needs of operational maintenance. Based on the static and dynamic analysis of the structure,the monitoring contents and design principles are proposed,157 measuring points are arranged in the whole bridge,and397 devices are installed in the bridge and monitoring center. The six subsystems of sensor subsystem,data acquisition and transmission subsystem,data processing and control subsystem,central database subsystem,structural security early warning and analysis subsystem and user interface subsystem are designed in detail. The feasibility of applying health monitoring system to large-span railway bridges is explored,which can lay a foundation for long-term health monitoring of railway bridges.Research conclusions:( 1) The design of the monitoring points of the railway bridge health monitoring system needs to consider both static and dynamic monitoring indicators,and combine with the bridge static load and dynamic load test.( 2) The selection of sensors should follow the principles of durability,reliability,advanced technology,convenient replacement and maintenance,and economic rationality.( 3) Data collection and transmission should be designed by fiber optic ring network. The monitoring center should be set up in the dispatching center of the railway bureau,which is convenient for maintenance and equipment management.( 4) The determination of the early warning indicators shall be determined jointly with the code for design on railway bridge and culvert,the code for rating existing railway bridge and the calculation of the carrying capacity at the operational stage.( 5) The research results can be promoted and applied in the railway large-span bridge health monitoring project.
Research purposes: With the rapid construction of high-speed railway bridges,the health monitoring of railway bridges has become an important guarantee for the operation safety and maintenance of high speed railways. The Yellow River Bridge of Shijiazhuang to Jinan is a( 128 + 3 × 180 + 128) m rigid suspension cable stiffening steel truss structure system. This paper studies the design method of health monitoring system based on the structural characteristics of the bridge and the needs of operational maintenance. Based on the static and dynamic analysis of the structure,the monitoring contents and design principles are proposed,157 measuring points are arranged in the whole bridge,and397 devices are installed in the bridge and monitoring center. The six subsystems of sensor subsystem,data acquisition and transmission subsystem,data processing and control subsystem,central database subsystem,structural security early warning and analysis subsystem and user interface subsystem are designed in detail. The feasibility of applying health monitoring system to large-span railway bridges is explored,which can lay a foundation for long-term health monitoring of railway bridges.Research conclusions:( 1) The design of the monitoring points of the railway bridge health monitoring system needs to consider both static and dynamic monitoring indicators,and combine with the bridge static load and dynamic load test.( 2) The selection of sensors should follow the principles of durability,reliability,advanced technology,convenient replacement and maintenance,and economic rationality.( 3) Data collection and transmission should be designed by fiber optic ring network. The monitoring center should be set up in the dispatching center of the railway bureau,which is convenient for maintenance and equipment management.( 4) The determination of the early warning indicators shall be determined jointly with the code for design on railway bridge and culvert,the code for rating existing railway bridge and the calculation of the carrying capacity at the operational stage.( 5) The research results can be promoted and applied in the railway large-span bridge health monitoring project.
引文
[1] S.-P. Chang,S. Kim,J. Lee,etc. Health Monitoring System of a Self-anchored Suspension Bridge(Planning,Design and Installation/Operation)[J].Structure and Infrastructure Engineering,2008(3):193-205.
[2]李惠,欧进萍.斜拉桥结构健康监测系统的设计与实现(I):系统设计[J].土木工程学报,2006(4):39-44.Li Hui, Ou Jinping. Design and Implementation of Health Monitoring Systems for Cable-stayed Bridge(I):Design Methods[J]. China Civil Engineering Journal,2006(4):39-44.
[3]刘志强,李娜,冯良平,等.西堠门大桥结构监测系统的设计与实现(I):系统设计[J].中国工程科学,2010(7):96-100.Liu Zhiqiang,Li Na,Feng Liangping,etc. Design and Implementation of Structural Monitoring Systems for Xihoumen Bridge(I):Design Methods[J]. Engineering Sciences,2010(7):96-100.
[4]杨琪,黄建跃. G325九江大桥斜拉桥健康监测系统[J].广东公路交通,2011(2):1-4.Yang Qi,Huang Jianyue. Health Monitoring System of Cable-stayed Bridge of G325 Jiujiang Bridge[J].Guangdong Highway Communications,2011(2):1-4.
[5] TB 10621—2014,高速铁路设计规范[S].TB 10621—2014, Code for Design of High Speed Railway[S].
[6] TB 10002—2017,铁路桥涵设计规范[S].TB 10002—2017,Code for Design on Railway Bridge and Culvert[S].
[7] TB 10091—2017,铁路桥梁钢结构设计规范[S].TB 10091—2017,Code for Design on Steel Structure of Railway Bridge[S].
[8]李惠,鲍跃全,李顺龙.结构健康监测数据科学与工程[M].北京:科学出版社,2016.Li Hui,Bao Yuequan,Li Shunlong. Date Science and Engineering for Structural Health Monitoring[M].Beijing:Science Press,2016.
[2]李惠,欧进萍.斜拉桥结构健康监测系统的设计与实现(I):系统设计[J].土木工程学报,2006(4):39-44.Li Hui, Ou Jinping. Design and Implementation of Health Monitoring Systems for Cable-stayed Bridge(I):Design Methods[J]. China Civil Engineering Journal,2006(4):39-44.
[3]刘志强,李娜,冯良平,等.西堠门大桥结构监测系统的设计与实现(I):系统设计[J].中国工程科学,2010(7):96-100.Liu Zhiqiang,Li Na,Feng Liangping,etc. Design and Implementation of Structural Monitoring Systems for Xihoumen Bridge(I):Design Methods[J]. Engineering Sciences,2010(7):96-100.
[4]杨琪,黄建跃. G325九江大桥斜拉桥健康监测系统[J].广东公路交通,2011(2):1-4.Yang Qi,Huang Jianyue. Health Monitoring System of Cable-stayed Bridge of G325 Jiujiang Bridge[J].Guangdong Highway Communications,2011(2):1-4.
[5] TB 10621—2014,高速铁路设计规范[S].TB 10621—2014, Code for Design of High Speed Railway[S].
[6] TB 10002—2017,铁路桥涵设计规范[S].TB 10002—2017,Code for Design on Railway Bridge and Culvert[S].
[7] TB 10091—2017,铁路桥梁钢结构设计规范[S].TB 10091—2017,Code for Design on Steel Structure of Railway Bridge[S].
[8]李惠,鲍跃全,李顺龙.结构健康监测数据科学与工程[M].北京:科学出版社,2016.Li Hui,Bao Yuequan,Li Shunlong. Date Science and Engineering for Structural Health Monitoring[M].Beijing:Science Press,2016.