大跨径预应力混凝土连续刚构桥健康监测评估系统研究
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摘要
随着国民经济的发展和桥梁设计理论的不断完善,桥梁建设跨径不断增大,结构更加复杂,造型日益美观,但潜在隐患也随之加大。因此,对大型桥梁的监测和评估工作显得尤为必要和紧迫。目前,对大型桥梁健康监测和评估的研究还处于试验阶段,如何在经济和技术允许的条件下,合理评价大型桥梁的服役状态,是一项迫切而意义重大的课题。
本文以大跨径预应力混凝土连续刚构桥健康监测评估系统为研究重点,以渝澳大桥轻轨桥主桥为工程背景,参考已建的桥梁监测系统,研究一套经济实用的大跨径预应力混凝土连续刚构桥评估系统软件。主要内容为:
①在借鉴当前国内外桥梁健康监测以及评估理论的基础上,用变权原理的层次分析法建立了大跨径预应力混凝土连续刚构桥健康监测评估指标体系和多层次递阶关系模型,提出了大桥服役状态的综合评估方法,并给出了各层次指标的权重。
②对裂缝、固有模态特征频率的评估进行了分析,得到了相应的评估标准。
③介绍了大跨径预应力混凝土连续刚构桥健康监测评估参数的选择原则、测试方法,提出了合理的测点布设方案,实现了桥梁的在线评估。
④研究了底层指标权重的计算方法,找到了一种脱离人为主观因素相对稳定构造应力和挠度测点权重判断矩阵的方法。
⑤以C++语言编制算法程序,采用VisualC++.NET为服务器端开发平台,以.net FrameWork2.0为客户端框架,运用SQLServer2005数据库,初步开发了大跨径预应力混凝土连续刚构桥综合评估系统软件,为同类型桥梁评估软件的开发提供了参考和依据。
With the development of national economy and the unceasing consummation of bridge design theory,the bridge construction span increases unceasingly,the structure is more complex and the modeling is artistic day by day, but the latent danger is also increasing along with it. Therefore, the work of monitoring and the assessing large bridge is especially necessary and urgent. At present, health research is also at the testing stage to monitor and assess the large bridge. Under the economical and technical permission's condition, how to reasonably assess service condition of large-scale bridge is a urgent and significance significant topic.
This article takes health monitoring and assessment system of long span prestressed concrete continuous rigid-frame bridge as a research key. It takes the main bridge of Yuao light rail as the project background, referencing constructed bridge monitoring system, studying a set of economical practical software system on long span prestressed concrete continuous rigid-frame bridge .The primary content is as follows.
①Referenced current domestic and foreign bridge health monitoring as well as the appraisal theory, the long span prestressed concrete continuous rigid-frame bridge indicator system and the multi-level hierarchical relational models by analytic hierarchy process under variable weights principle are established, also the comprehensive assessment method of bridge service condition is proposed, and various levels indicator weights are given too.
②The assessment of crack and inherent modality eigen frequency is carried on the analysis,and the corresponding appraisal standard is obtained.
③The health monitoring appraisal parameter selection principle and the test method of long span prestressed concrete continuous rigid-frame bridge are introduced, and the reasonable layout scheme of measuring points is proposed, also the bridge online appraisal is realized.
④The first floor indicator weights computational method is studied, and a relative stable method to build stress and the judgment matrix of deflection measured points weights which has been separated from artificial subjective factor is found.
⑤According to algorithmic program By C++ language, using VisualC++.NET as the development platform of server end, taking .net FrameWork2.0 as the customer end frame, also using SQLServer2005 database, the long span prestressed concrete continuous rigid-frame bridge comprehensive assessment system software initially is developed, which provids the reference and the basis for developing assessment software of the same type bridge.
本文以大跨径预应力混凝土连续刚构桥健康监测评估系统为研究重点,以渝澳大桥轻轨桥主桥为工程背景,参考已建的桥梁监测系统,研究一套经济实用的大跨径预应力混凝土连续刚构桥评估系统软件。主要内容为:
①在借鉴当前国内外桥梁健康监测以及评估理论的基础上,用变权原理的层次分析法建立了大跨径预应力混凝土连续刚构桥健康监测评估指标体系和多层次递阶关系模型,提出了大桥服役状态的综合评估方法,并给出了各层次指标的权重。
②对裂缝、固有模态特征频率的评估进行了分析,得到了相应的评估标准。
③介绍了大跨径预应力混凝土连续刚构桥健康监测评估参数的选择原则、测试方法,提出了合理的测点布设方案,实现了桥梁的在线评估。
④研究了底层指标权重的计算方法,找到了一种脱离人为主观因素相对稳定构造应力和挠度测点权重判断矩阵的方法。
⑤以C++语言编制算法程序,采用VisualC++.NET为服务器端开发平台,以.net FrameWork2.0为客户端框架,运用SQLServer2005数据库,初步开发了大跨径预应力混凝土连续刚构桥综合评估系统软件,为同类型桥梁评估软件的开发提供了参考和依据。
With the development of national economy and the unceasing consummation of bridge design theory,the bridge construction span increases unceasingly,the structure is more complex and the modeling is artistic day by day, but the latent danger is also increasing along with it. Therefore, the work of monitoring and the assessing large bridge is especially necessary and urgent. At present, health research is also at the testing stage to monitor and assess the large bridge. Under the economical and technical permission's condition, how to reasonably assess service condition of large-scale bridge is a urgent and significance significant topic.
This article takes health monitoring and assessment system of long span prestressed concrete continuous rigid-frame bridge as a research key. It takes the main bridge of Yuao light rail as the project background, referencing constructed bridge monitoring system, studying a set of economical practical software system on long span prestressed concrete continuous rigid-frame bridge .The primary content is as follows.
①Referenced current domestic and foreign bridge health monitoring as well as the appraisal theory, the long span prestressed concrete continuous rigid-frame bridge indicator system and the multi-level hierarchical relational models by analytic hierarchy process under variable weights principle are established, also the comprehensive assessment method of bridge service condition is proposed, and various levels indicator weights are given too.
②The assessment of crack and inherent modality eigen frequency is carried on the analysis,and the corresponding appraisal standard is obtained.
③The health monitoring appraisal parameter selection principle and the test method of long span prestressed concrete continuous rigid-frame bridge are introduced, and the reasonable layout scheme of measuring points is proposed, also the bridge online appraisal is realized.
④The first floor indicator weights computational method is studied, and a relative stable method to build stress and the judgment matrix of deflection measured points weights which has been separated from artificial subjective factor is found.
⑤According to algorithmic program By C++ language, using VisualC++.NET as the development platform of server end, taking .net FrameWork2.0 as the customer end frame, also using SQLServer2005 database, the long span prestressed concrete continuous rigid-frame bridge comprehensive assessment system software initially is developed, which provids the reference and the basis for developing assessment software of the same type bridge.
引文
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[02]陈梅.大跨径预应力混凝土箱梁桥腹板斜裂缝研究[D].长安大学硕士学位论文.2001.
[03]陆中元,李建华,朱念清.广东南海金沙大桥的维修加固[J].铁道建筑.2004.
[04]关于虎门大桥辅航道桥徐变挠度等问题的函[R].2003.
[05]许震.大跨P.C.连续刚构桥下挠分析及对策研究[D].重庆交通大学硕士学位论文.2007.
[06]张启伟.大型桥梁健康监测概念与监测系统设计.同济大学学报,2001,29(1).
[07]翁沙羚.文晖大桥健康监测评估系统的研究与开发[D].浙江大学硕士学位论文.2003.
[08]任京州.既有公路混凝土梁桥状态评估方法研究[D].长安大学硕士学位论文.2006.
[09]林超伟.重庆菜园坝长江大桥系杆评估方法研究[D].重庆大学硕士学位论文.2005.
[10]何伟.浅谈大跨桥梁健康监测系统的应用及发展,路桥建设[J].2008,31(92).
[11]黄胜前.预应力混凝土连续刚构桥综合评估系统研究[D].西南交通大学硕士学位论文.2007.
[12]李亚东.既有桥梁评估方法研究[J].铁道学报, 1997 , 6 (3).
[13]许肇峰,王强.桥梁评估方法的研究现状与发展[J].四川建筑, 2008 , 28 (4).
[14]交通部公路科学研究所.公路桥梁承载能力检测评定规程(征求意见稿)[M]. 2003.
[15]中华人民共和国交通部.公路钢筋混凝土及预应力混凝土桥涵设计规范(JTJ 023-85) [M].人民交通出版社.
[16]孙九春.大型桥梁综合评估系统研究(硕士学位论文)[D].上海:同济大学,2002.
[17]王永平,张宝银.张树仁.桥梁使用性能模糊评估专家系统[J].中国公路学报,1996,9(2).
[18]兰海,史家钧.灰色关联分析与变权综合法在桥梁评估中的应用.同济大学学报[J],2001 29(1).
[19]李昌铸,王丽云等.特尔斐专家评估法在公路桥梁评价中的应用,中国公路学报[J],1992年第2卷.
[20]杭州市市政设施监管中心.同济大学桥梁工程系编.杭州市城市桥梁管理系统研究报告.2002.12.
[21]J.de Brito,F.A.Branco,P.Thoft-Christensen and J.D.Srensen,An expert system for concret bridge management,Engineering Structures,Vol.19 No.7,1997:519-526.
[22] Hitoshi Furuta, Jianhong He and Eiichi Watanabe, A Fuzzy Expert System for Damage. Assessment Using Genetic Algorithms and Neural Networks.Journal of Computing in Civil Engineering, Vol.l 1, 1996: 37-45.
[23]李昌铸.我国公路桥梁管理系统的开发与推广应用[J].公路交通科技,1999(11).
[24]李昌铸,刘治军.公路桥梁管理系统(cBMSZoOO)的开发与应用[J].公路交通科技,2003(3).
[25]唐继舜,强士中,郑凯锋.桥梁工程设计数据库管理系统的研究.桥梁建设,1996,4:72-76.
[26]陆亚兴,殷建军,姚祖康.桥梁缺损状况评价方法[J].中国公路学报,1996,9(3).
[27]潘黎明,史家钧.桥梁安全性与耐久性综合评估研究.上海市政工程[J],1997, No.4.
[28]王有志,徐鸿儒,孙大海.已建桥梁主梁在复合受力状态下的评估指标计算.华东公路.2001, No.6, 44-46.
[29]张劲泉,宿健等.混凝土旧桥材质状况与耐久性检测评定指南及工程实例[M].人民交通出版社.2007.
[30]张永清,冯忠居.用层次分析法评价桥梁的安全性.西安公路交通大学学报,2001,21(3):52-56.
[31]郭红仙,任宝双,钱稼茄.北京地区钢筋混凝土简支梁桥结构综合评估系统.清华大学学报,2002, 42(6):31-38.
[32]袁万成,崔飞,张启伟,桥梁健康监测与状态评估的研究现状与发展.同济大学学报,1999,27(2):184-188.
[33]赵宇.大跨径混凝土斜拉桥服役状态层次评估方法研究.重庆交通大学硕士学位论文.2008.
[34]黄擎明,技术评估.杭州:浙江大学出版社,1990,167-173.
[35]Shin-ichi Ohnishi, Hideyuki Imai. Evaluation for a stability of fuzzy decision making using a sensitivity analysis. IEEE, 1998: 86-90.
[36]邱麟.钢管混凝土拱桥服役状态评估技术研究.重庆交通大学硕士学位论文.2008.
[37]刘文龙.基于不确定层次分析法桥梁安全性评估研究. [硕士学位论文].武汉理工大学,2005: 12～14.
[38]Shin-ichi Ohnishi, Hideyuki Imai. Evaluation for a stability of fuzzy decision making using asensitivity analysis. IEEE, 1998,20(6): 86-90.
[39]张劲泉,李万恒等.公路旧桥承载力评定方法及工程实例[M].人民交通出版社.2007.
[40]伍成华.大跨径预应力混凝土斜拉桥状态评估系统研究.浙江大学硕士论文,2006:50～65.
[41]宋雨,文晖大桥健康监测与评估管理系统主要问题研究.[博士学位论文].浙江大学,2006: 27～36.
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