基于健康监测系统的系杆拱桥安全评估
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摘要
为了对钢管混凝土系杆拱桥进行有效的监测,确保其运营安全,以东莞市大汾北水道特大桥为工程背景,基于Midas Civil对该桥进行了有限元分析,介绍了该桥健康监测系统设计的指导思想、系统集成及总体框架流程、监测内容、监测点布设方案及各大子系统的功能和数据远程传输组网方案。最后,基于在线监测系统实测数据,对该桥运营状态进行了安全评估。结果表明:该桥总体受力和变形量值不大,均小于理论计算值,处于正常的范围;桥梁总体处于安全、可控的状态。
In order to monitor the concrete-filled steel tube tied arch bridge effectively,and to ensure operational safety,in the engineering background of Dafenbei Shuidao Super Large Bridge in Dongguan,the finite element analysis for this bridge was completed based on Midas Civil at first. This paper introduced the design guiding principle, system integration,framework flow,monitoring content and survey point distribution,the function of each subsystems,data remote transmission and networking technology of the bridge health monitoring system. At last,the running safety status of this bridge was evaluated based on the data measured by the on-line monitoring system. The results show that the total stress and deformation are not large,the values are less than the theoretical calculating values and all the numbers fall within normal ranges. The bridge is in a safe,controllable operating state totally.
In order to monitor the concrete-filled steel tube tied arch bridge effectively,and to ensure operational safety,in the engineering background of Dafenbei Shuidao Super Large Bridge in Dongguan,the finite element analysis for this bridge was completed based on Midas Civil at first. This paper introduced the design guiding principle, system integration,framework flow,monitoring content and survey point distribution,the function of each subsystems,data remote transmission and networking technology of the bridge health monitoring system. At last,the running safety status of this bridge was evaluated based on the data measured by the on-line monitoring system. The results show that the total stress and deformation are not large,the values are less than the theoretical calculating values and all the numbers fall within normal ranges. The bridge is in a safe,controllable operating state totally.
引文
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[15]彭桂瀚,陈宝春.东莞大汾北水道钢管混凝土拱桥受力分析[J].福建建筑,2003(4):36-38.
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[19]冯昆荣.基于无线传输技术的野外桥梁远程健康监测及安全评估系统[J].西南科技大学学报,2016,31(1):44-48.
[2]冯云成.上承式预应力混凝土刚性梁柔性拱桥静力分析[J].世界桥梁,2012,40(1):47-49,64.
[3]孟杰.系杆拱桥结构体系研究[D].长沙:湖南大学,2002.
[4]何天宝.重庆涪陵石板沟长江大桥健康监测系统的研究与开发[D].重庆:重庆交通大学,2009.
[5]韩之江,杨建红.桥梁健康监测技术的研究与实施[J].公路,2008(3):51-56.
[6]王江,李宏伟,郭安薪,等.天津永和大桥健康监测系统集成与实现技术研究[J].天津建设科技,2008(1):35-38.
[7]伍琦敏.浅谈桥梁健康监测系统的现状及发展方向[J].江西建材,2016(10):153-154.
[8]秦权.桥梁结构的健康监测[J].中国公路学报,2000,13(2):37-42.
[9]谢开仲,韦立林,李海.钢管混凝土拱桥健康监测系统研究[J].广西大学学报(自然科学版),2009,34(2):127-130.
[10]陈钒.既有钢管混凝土拱桥实时监测评估系统[J].桥梁建设,2010(1):79-83.
[11]崔玉萍,刘勇,周明晖,等.某大型拱桥的健康监测系统与远程诊断[J].市政技术,2015,23(增刊):99-143.
[12]谭永朝,郑翰献,俞菊虎,等.钱江四桥桥梁实时健康监测系统开发研究[J].公路交通科技,2004,21(11):43-46.
[13]刘慧东.尼尔森体系钢管混凝土拱桥健康监测及安全性评估研究[D].南昌:南昌大学,2015.
[14]郑淳,廖威.大跨径桥梁运营期结构健康监测系统设计[J].广州建筑,2015,43(3):36-42.
[15]彭桂瀚,陈宝春.东莞大汾北水道钢管混凝土拱桥受力分析[J].福建建筑,2003(4):36-38.
[16]孙洪水.桥梁健康监测系统及其应用[J].交通世界,2012,3(4):198-199.
[17]杨勇,陈炳聪,李永河,等.飞鸟式钢管混凝土拱桥健康监测系统研究[J].公路工程,2015,40(3):52-56.
[18]唐堂,温天宇.某钢筋混凝土系杆拱桥的长期监测与分析[J].现代交通技术,2016,13(2):41-45.
[19]冯昆荣.基于无线传输技术的野外桥梁远程健康监测及安全评估系统[J].西南科技大学学报,2016,31(1):44-48.