建筑结构数字化动态变形监控与评估系统设计
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摘要
本文通过对建筑物结构变形监测中的几种主要常规传统方法与GPS方法等特点的比对,论述了运用现代传感技术、数字采集及宽带网络通讯等技术,在软件系统支撑下研发的"重要建筑物结构健康诊断的数字化动态变形监控与安全评估系统"的必要性和可行性。本文介绍了该系统的构成,并详细介绍了传感、数据采集与处理、数控、时间服务、通讯、诊断分析与安全评估等子系统的主要内容。该系统除了具有各测站点无需通视、可长年连续监控等特色外,还具备多测点连续自动采样率的准确性、远程遥测操控的简便性、长年观测的精度可靠性、构建物各点位的监控同步性、直观可视性等特点。该系统所进行的长期动态变形、振动化监测,可推动建筑结构运营安全"指纹特征"、健康诊断领域的发展。
The characteristics of GPS method,which is used in building structural deformation monitoring,are compared to those of several conventional methods,indicating the shortcomings of conventional methods.This paper discusses the necessity and feasibility of the Digital Dynamic Deformation Monitoring and Evaluation System of Building Structural Health Diagnosis which consists of state-of-the-art sensor technology,data acquisition and communication technology of broadband network.This paper presents the structure of the system and describes the function of each subsystem including sensor,data sampling and processing,digital control,time service,diagnosis and safety evaluation.The system for building monitoring is compelling because of low requirement for station visualization,long-term and automated operation,accuracy of the automated sampling data,remote manipulation,long-term monitoring reliability,synchronized and directs monitoring.The application of the system can improve the safety of structures during operation using "fingerprinting" technology and promote the development of structural health diagnosis.
The characteristics of GPS method,which is used in building structural deformation monitoring,are compared to those of several conventional methods,indicating the shortcomings of conventional methods.This paper discusses the necessity and feasibility of the Digital Dynamic Deformation Monitoring and Evaluation System of Building Structural Health Diagnosis which consists of state-of-the-art sensor technology,data acquisition and communication technology of broadband network.This paper presents the structure of the system and describes the function of each subsystem including sensor,data sampling and processing,digital control,time service,diagnosis and safety evaluation.The system for building monitoring is compelling because of low requirement for station visualization,long-term and automated operation,accuracy of the automated sampling data,remote manipulation,long-term monitoring reliability,synchronized and directs monitoring.The application of the system can improve the safety of structures during operation using "fingerprinting" technology and promote the development of structural health diagnosis.
引文
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[10]郭健.基于小波分析的结构损伤识别方法研究[D].杭州:浙江大学,2004.
[2]李宏男,李东升.土木工程结构安全性评估、健康监测及诊断述评[J].地震工程与工程振动,2002,22(3):82-90.
[3]谭林.基于动力指纹的结构损伤识别可靠度方法研究[D].广州:华南理工大学,2010.
[4]李国强,李杰.工程结构动力检测理论与应用[M].北京:科学出版社,2002.
[5]李宏男,伊廷华,王国新.GPS在结构健康监测中的研究与应用进展[J].自然灾害学报,2004,13(6):122-130.
[6]蔡惟鑫,谭适龄.GK静力水准数字化系统的研制及应用分析[J].大坝观测与土木测试,1999,21(6):36-39.
[7]陈鑫连,张奕麟,蔡惟鑫.地壳变动连续观测技术[M].北京,地震出版社,1989.
[8]蔡惟鑫,R Vieira.火山与地壳变动[M].北京:地震出版社,2005.
[9]蔡惟鑫.我国第二代定点形变(应变)连续观测技术[J].中国地震,1988,4(1):62-67.
[10]郭健.基于小波分析的结构损伤识别方法研究[D].杭州:浙江大学,2004.
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