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光纖傳感與結(jié)構(gòu)健康監(jiān)測技術(shù)(英文版)
This book focuses on optical fiber sensing and structural health monitoring technolo-gies. It provides detailed information on the basic theory of F-P optical fiber sensors,fiber Bragg grating sensors, fiber laser grating sensors and fully distributed optical fiber sensors. Drawing on the authors’ research achievements and many years of practical experience in the field of engineering structure health monitoring, the book elabo-rates on the structural principle, design and manufacture of optical fiber sensors and monitoring technologies, and briefly describes advances made with regard to multiple
The international academic and engineering circles have reached a broad consensus to monitor the health of civil engineering structure, master the health state of structure in real time, discover and eliminate the potential safety hazard in time and guarantee the long-term safe service of various civil engineering structures. The health monitoring technology based on optical fiber sensing has unique advantages such as small volume, light weight, high sensitivity, anti-electromagnetic interference capability, integrated transmission and sensing functions, easy networking and distributed measurement. Therefore, it made rapid development and considerable progress in recent 20 years. Its role in the health monitoring of engineering structure is increasingly important.The author and his research team have dedicated themselves to the research on the development and application of health monitoring technology based on optical fiber sensing for a long time. They have rich research achievements and engineering practice experience.
The international academic and engineeringcircles have reached a broad consensus to monitor the health of civilengineering structure, master the health state of structure in real time,discover and eliminate the potential safety hazard in time and guarantee thelong-term safe service of various civil engineering structures. The healthmonitoring technology based on optical fiber sensing has unique advantages suchas small volume, light weight, high sensitivity, anti-electromagneticinterference capability, integrated transmission and sensing functions, easynetworking and distributed measurement. Therefore, it made rapid developmentand considerable progress in recent 20 years. Its role in the health monitoringof engineering structure is increasingly important. The author and his research team havededicated themselves to the research on the development and application ofhealth monitoring technology based on optical fiber sensing for a long time.They have rich research achievements and engineering practice experience. Thebook introduces the basic theory and method of optical fiber sensing technologyas well as the structural design, manufacture and practical application ofsensors from the point of structural health monitoring. The book is dividedinto 10 chapters. Chapter 1 is Introduction. It mainly introduces the basicconcept, type and feature of optical fiber sensing technology as well as itsapplication and development trend in the structural health monitoring field.Chapter 2-5 mainly focus on the demand for engineering structure healthmonitoring. They describe various optical fiber sensors, including F-P opticalfiber sensor, optical fiber laser sensor, fiber Bragg grating sensor and fullydistributed optical fiber sensor, from the aspects of sensor working principle,structure design, manufacture process and sensing characteristics. Chapter 6-9emphasize the health monitoring technologies of different engineering structuressuch as prestressed tendon, cable and concrete. Chapter 10 focuses on theengineering application of optical fiber sensing technology. It mainlyintroduces the long-term health monitoring, security evaluation and alarmsystem of several projects with optical fiber sensors, including Wuhu YangtzeRiver Bridge, Liaohe Grand Bridge on Qinhuangdao-Shenyang Passenger DedicatedLine, Hemaxi Grand Bridge, Xiaogou Grand Bridge on Shanxi Xinyuan Highway andthe high and steep slope of Shuohuang Railway. The book summaries and integrates theresearch achievements and engineering applications of the author and hisresearch team in over 20 years. Sincerely thank the research team members fortheir dedicated cooperation and hard work for many years, including SunBaochen, Su Mubiao, Wang Xinmin, Zhao Weigang, Liu Yongqian, Chen Baoping, LiJianzhi, Chen Shuli, Li Yiqiang, etc. In addition, Zhang Xushe, Jin Xiumei, WeiBin, Zhang Wentao, Li Feng, Xu Hongbin, Li Xiaoyang, Liu Chenxi, Shao Lin, YangYaoen, Yang Liping, Dai Jingyun, Xu Hua, Hao Gengjie, Han Jing and Hou Yuemindevoted their wisdom and painstaking efforts to the research contents in thebook when they were studying for doctoral or master' degree. When the book wasdrafted and compiled, Liu Bo, Li Feng, Xu Hongbin, Sun Xu, Zheng Xinyu, RenZexu, Li Zhendong, Wang Qingyou, Sun Haokai, Wang Haiyong and other doctoral ormaster students made great efforts to the literature arrangement, translationand review. I am hereby deeply grateful to all of them. The book was funded by China HighTechnology Research and Development Projects "Inspection and ReinforcementTechnology of the Bridge and Subgrade for Heavy-haul Railway"(2009AA11Z102) and "Monitoring Technology of Heavy-haul Train OperationDanger State Based on Optical Fiber Sensing" (2009AA11Z212); NationalNatural Science Foundation of China "Critical State Evaluation andCritical Technology Research on Cable-stayed Bridge Structure Based on SmartStay Cable" (50778116), "Monitoring Technology and Method Research onCritical Bearing Component State of Prestressed Reinforced ConcreteStructure" (50278058), "New Method of Long-term Composite Monitoringfor Prestressed Anchor Cable Corrosion Damage" (51778379) and "NewMethod of Long-term Monitoring for Geotechnical Anchor Cable with FullyDistributed Stress and Damage Positioning Function" (51508349); NaturalScience Foundation of Hebei Province "Research on the Real-time Monitoringand Security Evaluation System of Stayed Cable Based on Fiber BraggGrating" (E2004000417), "Critical Technology Research on Carbon FiberComposite Reinforcement with Automatic Monitoring Function" (E2006000389),"Dynamic Stress Analysis and Property of Intelligent Composite Materialfor Fiber Bragg Grating" (E2015210094); Scientific Research Project ofHebei Province "Research and Development of Optical Fiber Strain Sensorand Its Signal Acquisition System" (03213539D); Science and TechnologyResearch and Development Projects of Ministry of Railways "Long-term Monitoringand Security Evaluation System of Wuhu Yangtze River Bridge" (2000G19-B)and "Application Research on Optical Fiber Testing Technology of LiaoheGrand Bridge on Qinhuangdao-Shenyang Passenger Dedicated Line"(2001G018-B). The author hereby expresses his sincere thanks to the Ministry ofScience and Technology, National Natural Science Foundation of China, HebeiProvince, Ministry of Railways and other science and technology administrationdepartments for their full support and project grant. It is hoped that the book is helpful forscientific researchers and engineering technicians in the field of structuralhealth monitoring and optical fiber sensing technology as well as the teachersand students in related majors of colleges and universities. The researchcontents in this book involve civil engineering, mechanics, photology,machinery, material, measurement and control, featuring multidisciplinaryinterpenetration, large span and high difficulty. Given the limited level ofthe author, it is unavoidable to have omissions and improperness in the book.Please kindly offer advice and correct them.
杜彥良,男,1956年10月16日出生,博士,教授,博士生導(dǎo)師,中國工程院院士,大型工程結(jié)構(gòu)狀態(tài)監(jiān)測與安全控制專家。長期從事交通工程領(lǐng)域安全監(jiān)測與可靠性評價研究,率先將智能結(jié)構(gòu)理論與方法融入交通工程安全保障技術(shù)領(lǐng)域,圍繞國家高速鐵路、重載鐵路、高原高寒鐵路、既有線提速鐵路、城市軌道交通和高速公路等重大工程建設(shè),開展了大型橋梁、多年凍土路基、大型工程結(jié)構(gòu)和長大隧道施工裝備狀態(tài)監(jiān)測與安全控制的理論研究、技術(shù)創(chuàng)新和應(yīng)用推廣,取得了多項創(chuàng)新性成果。獲得省部級以上科技獎勵18項,其中國家科技進步一等獎1項、二等獎2項,省部級科技進步一等獎7項、技術(shù)發(fā)明一等獎1項;獲國家教學(xué)成果一等獎1項、二等獎2項;授權(quán)國家專利20余項;出版專著/教材9部,發(fā)表論文180余篇。獲得何梁何利科學(xué)技術(shù)獎、國家杰出專業(yè)技術(shù)人才、國家教學(xué)名師和河北省突出貢獻獎、河北省巨人團隊領(lǐng)軍人才等榮譽稱號。2013年當選為中國工程院院士。
1 Introduction 1 1.1 Optical Fiber and Optical Fiber Sensor 1 1.1.1 Optical Fiber 1 1.1.2 Optical Fiber Sensor 2 1.2 Classification and Characteristics of Optical Fiber Sensor 3 1.2.1 Classification of Optical Fiber Sensor 3 1.2.2 Characteristics of Optical Fiber Sensor 10 1.3 Current Status and Development Trends of Optical Fiber SensingTechnology 11 1.3.1 Current Status of Optical Fiber Sensing Technology 11 1.3.2 Development Trends of Optical Fiber Sensing Technology 15 1.4 Structural Health Monitoring Based on Optical Fiber Sensing Technology21 References 25
2 Optical Fiber Interferometer Based on F-P Cavity 27 2.1 White Light Interferometric F-P Optical Fiber Sensor 27 2.1.1 Principle of White Light Interferometric F-P Optical Fiber Sensor 27 2.1.2 White Light Interferometric Sensor Head 30 2.1.3 Embedded White Light Interferometric Optical Fiber Temperature Sensor 38 2.1.4 Embedded White Light Interferometric Optical Fiber Strain Sensor 48 2.2 Optical Accelerometers Based on F-P Cavity 58 2.2.1 Preliminary Test for Encapsulation 58 2.2.2 Structure of Accelerometer 60 2.2.3 Principle of Accelerometer 61 2.2.4 Test Results and Discussions 62 2.3 Summary 64 References 64
3 Fiber Bragg Grating Sensor 66 3.1 Basic Principle of Fiber Bragg Grating 66 3.1.1 Coupled Mode Theory for Fiber Bragg Grating 66 3.1.2 Principle and Sensitivity of Fiber Bragg Grating Temperature Sensor 69 3.1.3 Principle and Sensitivity of FBG Strain Sensor 70 3.1.4 Theoretical Analysis of FBG Temperature-strain Cross Sensitivity 71 3.2 Temperature Self-compensated FBG Sensor Based on Thermal Stress 72 3.2.1 Principle of Temperature Self-compensation 72 3.2.2 Structural Design 74 3.2.3 Theoretical Analysis of Strain Sensing Characteristics 77 3.2.4 Parameter Analysis of Temperature Compensation Structure Design 80 3.2.5 FBG Strain Sensor with Integral Temperature Compensation Structure 85 3.2.6 Small FBG Strain Sensor 97 3.3 FBG Soil-pressure Sensor Based on Dual L-shaped Levers 102 3.3.1 Structure and Principle of the Soil-pressure Sensor 103 3.3.2 Design and Strength Check of Soil-pressure Sensor 104 3.3.3 Laboratory Calibration Tests 106 3.3.4 Field Tests 107 3.4 Fiber Bragg Grating Displacement Sensor 108 3.4.1 Sensor Design 109 3.4.2 Tests and Results 110 3.5 Fiber Bragg Grating Tilt Sensor 111 3.5.1 Structure Design of Fiber Bragg Grating Tilt Sensor 112 3.5.2 Sensing Performance of Fiber Bragg Grating Tilt Sensor 117 3.5.3 Indoor Simulation Experiment of Fiber Bragg Grating Tilt Sensor 120 3.6 Summary 123 References 124
4 Fiber Laser Sensor 126 4.1 Acoustic Emission Receiver Based on DFB 126 4.1.1 Operation Principles 127 4.1.2 Investigation of AE Directional Sensitivity of DFB Fiber Laser 129 4.1.3 Location Algorithm 134 4.1.4 Tests and Results 136 4.2 DFB Fiber Laser Accelerometers 138 4.2.1 Principles 139 4.2.2 Wavelet Denoising 144 4.2.3 Inertial Algorithm 145 4.2.4 Test Scheme 145 4.2.5 Test Results 146 4.3 Summary 148 References 148
5 Fully Distributed Optical Fiber Sensor 151 5.1 Spontaneous Scattering Spectrum in Optical Fiber 151 5.2 Application of Spontaneous Scattering in Fully Distributed Optical FiberSensing Technology 152 5.3 Winding Optical Fiber Strain Sensor 152 5.3.1 Theoretical Basis and Analysis 153 5.3.2 Structure and Parameters of Winding Optical Fiber Strain Sensor 159 5.3.3 Measurement System of Winding Optical Fiber Strain Sensor 162 5.3.4 Sensing Characteristic of Winding Optical Fiber Strain Sensor 169 5.3.5 Distributed Sensing Characteristics of Winding Optical Fiber StrainSensor 174 5.4 Large Displacement Sensor Based on Fully Distributed Optical FiberSensor 175 5.4.1 Principle of Fully Distributed Displacement Sensing Based on Fiber BraggGrating 176 5.4.2 Displacement Loading Test 177 5.4.3 Analysis on the Displacement Sensing Characteristics 179 5.5 Summary 183 References 184
6 Monitoring Technology for Prestressing Tendons Using Fiber Bragg Grating186 6.1 Theoretical Analysis on Prestress Loss of Concrete Structure 186 6.1.1 Calculation of Prestress Loss 186 6.1.2 Calculation of Effective Prestress 195 6.2 Design of FBG Prestress Sensor at Anchor Head 195 6.2.1 Prestress Monitoring Principle at Anchor Head of Prestressed ConcreteStructure 196 6.2.2 Structure Design and Principle of FBG Prestress Sensor at Anchor Head197 6.2.3 Design of FBG Prestress Sensor at Anchor Head 198 6.2.4 Calibration Experiment for FBG Prestress Sensor at the Anchor Head 200 6.3 Prestress Monitoring Technology Using Fiber Bragg Grating Sensor Arrays202 6.3.1 Structure and Performance Parameters of Steel Strands 202 6.3.2 Combination of Fiber Bragg Gratingand Steel Strand and Stress Measurement Principle for Steel Strand 202 6.3.3 Quasi-distributed Stress Monitoring of Prestressing Steel Strand Basedon Fiber Bragg Grating 204 6.4 Summary 208 References 208
7 Cable Stress Monitoring Technology Based on Fiber Bragg Grating 209 7.1 Current Status 209 7.2 Cable Tension Monitoring System Based on FBG 210 7.2.1 Composition and Working Principle of Cable Tension Monitoring System 210 7.2.2 Characteristics of Cable Tension Monitoring System 211 7.2.3 FBG Pressure Sensor 212 7.2.4 Hardware Design 215 7.2.5 Software Design 216 7.3 Distributed Stress Monitoring System for Cable Based on FBG 218 7.3.1 Composition and Working Principle of Distributed Stress MonitoringSystem for Cable 218 7.3.2 Characteristics of Cable Tension Monitoring System 219 7.3.3 System Design of Signal Acquisition Processing and Analysis 219 7.3.4 Realization of Remote Monitoring for Smart Structure in Cable 220 7.4 Test for Condition Monitoring of Cable Structure 221 7.4.1 Cable Model and Test System 221 7.4.2 Test of Cable Tension 222 7.4.3 Test of Cable Stress Distribution 223 7.4.4 Test of Cable Modal Parameter 223 7.5 Summary 225 References 226
8 Intelligent Monitoring Technology for Fiber Reinforced PolymerComposites Based on Fiber Bragg Grating 227 8.1 Preparation and Properties of Fiber Reinforced Polymer Composites 227 8.1.1 Selection and Proportioning of Component Materials 227 8.1.2 Performance Test and Analysis of Fiber Reinforced Polymer Bar 229 8.1.3 Experiment Study on Anchorage System for Fiber Reinforced Polymer Bar237 8.2 Interface Bonding Analysis of Fiber Bragg Grating Sensors and CompositeMaterials 239 8.3 Sensing Characteristics of Smart FRP Rod 241 8.3.1 Preparation of Smart FRP Rod 242 8.3.2 Test and Analysis on Sensing Characteristics of the Smart FPR Rod 243 8.4 Summary 245 References 245
9 Concrete Crack Monitoring Using Fully Distributed Optical Fiber Sensor247 9.1 Main Parameters of Fully Distributed Optical Fiber Sensing Technology247 9.2 Brillouin Scattering Principle and Sensing Mechanism in Optical Fiber249 9.2.1 Brillouin Scattering in Optical Fiber 249 9.2.2 Sensing Mechanism Based on Brillouin Scattering 255 9.3 FBG-based Positioning Method for BOTDA Sensing 258 9.3.1 Traditional Positioning Method for Fully Distributed Optical FiberSensing 258 9.3.2 Description of FBG-based Positioning Method 259 9.3.3 Results and Discussion 261 9.4 Concrete Crack Monitoring Using Fully Distributed Optical Fiber SensingTechnology 269 9.4.1 Tests 269 9.4.2 Results and Discussion 271 9.5 Summary 279 References 279
10 Engineering Applications of Optical Fiber Sensing Technology 281 10.1 Long-term Health Monitoring and Alarm System for Wuhu Yangtze RiverBridge 281 10.1.1 Brief Introduction to Wuhu Yangtze River Bridge 281 10.1.2 General Overview of the Long-term Health Monitoring and Alarm System 282 10.1.3 Strain Monitoring System Based on Optical Fiber Sensing 284 10.2 Monitoring System of Liaohe Bridge on Qinhuangdao-Shenyang PassengerDedicated Line 287 10.2.1 Brief Introduction to Liaohe Bridge 287 10.2.2 Application of Optical Fiber Sensor in Concrete Hydration Heat Testing288 10.2.3 Application of Optical Fiber Sensor in Construction Quality Monitoringof Concrete Bridge 289 10.2.4 Application of Optical Fiber StrainSensor in Dynamic Monitoring of Concrete Box Beam 290 10.3 Long-term Health Monitoring System for Xinyuan Highway Xiaogou GrandBridge 293 10.3.1 Brief Introduction to Xiaogou Grand Bridge 293 10.3.2 Composition of Long-term Health Monitoring System 293 10.3.3 Strain Monitoring System Based on Fiber Bragg Grating 296 10.3.4 Effect Analysis of Strain Monitoring 298 10.4 Long-term Monitoring System of Shuohuang Railway High-steep Slope 299 10.4.1 Brief Introduction to Monitoring Section 299 10.4.2 Monitoring Scheme for Slope Deformation 300 10.4.3 Monitoring Points Layout and Monitoring Equipments Installation 301 10.4.4 System Operation and Monitoring Results 302 10.5 Summary 304 References 304
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