ÐüË÷ÇŵĽ¡¿µ¼à²â:ʵ²âÊý¾Ý·ÖÎö½â¶Á(Ó¢ÎÄ°æ)/µËÑï

Part 1
1 Temperature Action Monitoring of Main Girder
1£®1 Introduction
1£®2 The NSB Description and Instrumentation
1£®3 Spatial and Temporal Characteristics of Temperature Measurements
1£®4 Effective Temperature Analysis
1£®4£®1 Correlation of Ambient Air Temperature and Effective Temperature
1£®4£®2 Cycling Variation of Effective Temperature
1£®5 Temperature Gradient Analysis
1£®5£®1 Transverse Temperature Differences
1£®5£®2 Vertical Temperature Differences
1£®5£®3 Correlation Analysis of Temperature Differences
1£®6 Characteristic Values of Effective Temperature and Temperature Gradients
1£®7 Discussion of Temperature Actions for Potential Bridge Design Improvements
1£®7£®1 Effective Temperature
1£®7£®2 Temperature Gradients
1£®8 Summary
References
2 Bridge-Site Extreme Wind Prediction
2£®1 Introduction
2£®2 The RSB Description and Wind Monitoring Instrumentation
2£®3 Statistical Analysis of Wind Measurements
2£®4 Maximum Entropy-Based Prediction Method
2£®4£®1 Basic Theory
2£®4£®2 Numerical Example
2£®5 Prediction of Extreme Wind Velocity
2£®5£®1 Joint Probability Density Functions
2£®5£®2 Estimation of Model Parameters
2£®5£®3 Extreme Wind Velocities
2£®6 Summary
Appendix
References

Part 2
3 Measurement-Based Damage Detection for Expansion Joints
3£®1 Introduction
3£®2 Displacement Monitoring of the RSB
3£®3 Determination of Dominant Environmental Factors
3£®4 Damage Detection of Expansion Joints
3£®4£®1 Correlation Models Between Displacements and Dominant Environmental Factors
3£®4£®2 Definition of Damage Detection Index
3£®4£®3 Statistical Control Chart
3£®4£®4 False Positive Tests
3£®4£®5 Damage Sensitivity Test
3£®5 Summary
References
4 Modal Frequency-Based Structural Damage Detection
4£®1 Introduction
4£®2 Identification of Modal Frequencies for the RSB
4£®3 Temperature-Induced Variability of Modal Frequencies
4£®3£®1 Correlation Analysis of Temperature-Frequency
4£®3£®2 Removal of Temperature Effect
4£®4 Wind-induced and Traffic-Induced Modal Variability
4£®4£®1 Correlation Analysis of Traffic-Frequency
4£®4£®2 Correlation Analysis of Wind-Frequency
4£®5 Framework of Damage Detection
4£®5£®1 Machine Learning-Based Frequency-Temperature Model
4£®5£®2 Probabilistically Modeling and Normalization
4£®5£®3 Control Charts of the Healthy Phase
4£®5£®4 Control Charts of the Unknown Phase
4£®6 Framework Application
4£®6£®1 Elimination of the Temperature Effects
4£®6£®2 Normalization of the Modal Frequencies
4£®6£®3 Damage Detection Based on Control Chart
4£®7 Summary
References

Part 3
5 Fatigue Monitoring of Welded Details
5£®1 Introduction
5£®2 Fatigue Stress Monitoring of the Runyang Yangtze Bridge
5£®3 Fatigue Damage Determination Framework
5£®3£®1 S-N Curves of Welded Orthotropic Decks
5£®3£®2 Equivalent Stress Range and Fatigue Damage
5£®4 Processing of Strain Measurements
5£®4£®1 Original Strain Data Analysis
5£®4£®2 Temperature Effect on Stress Range Histogram
5£®4£®3 Random Interference in Stress Range Histogram
5£®5 Necessity of Long-Term Monitoring
5£®5£®1 Medium-Term Monitoring
5£®5£®2 Long-Term Monitoring
5£®6 Fatigue Life Prediction
5£®7 Summary
References
6 Fatigue Reliability Analysis for Welded Details
6£®1 Introduction
6£®2 Framework of the Fatigue Reliability Analysis
6£®2£®1 Fatigue Limit State Function
6£®2£®2 Probabilistic Model for the Equivalent Stress Range
6£®2£®3 Fatigue Reliability Estimation Methods
6£®3 Fatigue Reliability of the Welded Details of the RSB
6£®3£®1 Stress Range Histograms
6£®3£®2 Probability Density Functions
6£®3£®3 Reliability Results
6£®4 Summary
References

Part 4
7 Vertical Deflection Monitoring of Main Girder
7£®1 Introduction
7£®2 Vertical Deflection Monitoring System of the NSB
7£®2£®1 Connected Pipe System
7£®2£®2 Deflection Monitoring of the NSB
7£®2£®3 Data Analysis Framework
7£®3 Verification of the Connected Pipe System
7£®3£®1 Processing of Deflection Measurements
7£®3£®2 Controlled Load Test
7£®3£®3 Uncontrolled Load Test
7£®4 Deflection Assessment Using Long-Term Measurements
7£®4£®1 Thresholds for Deflection Assessment
7£®4£®2 Prediction Method of Extreme Deflection
7£®4£®3 Analysis and Assessment
7£®5 Summary
References
8 Serviceability Assessment Based on Deflection Measurements
8£®1 Introduction
8£®2 Serviceability Assessment Framework
8£®2£®1 Identification of Traffic-Induced Deflection
8£®2£®2 POT-Based Probabilistic Model
8£®2£®3 Threshold Selection of GPD
8£®2£®4 Extreme Value Distribution
8£®2£®5 Quasi-System Reliability Assessment for Vertical Deflections
8£®3 Application of the Proposed Framework
8£®3£®1 Measurement Processing
8£®3£®2 GEVD-Based Extreme Value Distribution
8£®3£®3 Reliability Analysis
8£®4 Summary
References

Part 5
9 Tension Force Monitoring of Main Cable
9£®1 Introduction
9£®2 Tension Force Monitoring System of the NSB
9£®3 Estimation of Main Cable's Tension Force
9£®4 Assessment Methods of Main Cable
9£®4£®1 Uniformity of Cable Strands' Tension Forces
9£®4£®2 Thresholds of Main Cable's Safety Factor£®
9£®5 Long-Term Data Analysis
9£®5£®1 One-Day Monitoring
9£®5£®2 Long-Term Monitoring
9£®6 Summary
References

10 WIM-Based Fatigue Performance Investigation of Hangers
10£®1 Introduction
10£®2 Proposed Framework of Fatigue Performance Investigation of Hangers
10£®3 Description of Hangers of the NSB
10£®4 WIM Measurements of the NSB
10£®5 Fatigue Performance Investigation of the NSB's Hangers
10£®5£®1 Influence Surfaces of Hanger Tension Force
10£®5£®2 Vehicle Loading Configuration
10£®5£®3 Fatigue Damage Calculation
10£®5£®4 Threshold of the GVW
10£®5£®5 Time Step for Stress Calculation
10£®5£®6 Fatigue Life Prediction
10£®5£®7 Correlation Analysis Between the Fatigue Damage and Vehicular Loads
10£®6 Summary
References