Dynamics of Bridges, Volume 5

Name: Dynamics of Bridges, Volume 5 | Proceedings of the 28th IMAC, A Conference on Structural Dynamics, 2010
Brand: Springer
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Proceedings of the 28th IMAC, A Conference on Structural Dynamics, 2010

Tom Proulx(Autor*in)

Springer (Verlag)

1. Auflage

Erschienen am 13. Mai 2011

VIII, 188 Seiten

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Inhalt

Intro
Dynamics of Bridges, Volume 5
Preface
Contents
Traffic Excited Vibrations Acting on Pedestrians Using a Highway Bridge
ABSTRACT
THE BRIDGE
AMBIENT VIBRATION TESTS
INSTRUMENTATION
AMBIENT VIBRATION TESTS
SIGNAL PROCESSING AND RESULTS
VEHICLE EXCITATION
ACCEPTANCE OF THE CANTILEVER VIBRATION LEVELS
BRIDGE VEHICLE INTERACTION
TUNED MASS DAMPERS (TMD's)
SUMMARY AND CONCLUSIONS
ACKNOWLEDGEMENTS
REFERENCES
Development of a Tamar Bridge Finite Element Model
ABSTRACT
1 INTRODUCTION
2 BRIDGE DESCRIPTION AND HISTORY
3 FINITE ELEMENT MODELING
4 INTERNAL FORCE EQUILIBRIUM
4.1 ACCEPTABLE PROFILE SHAPE
4.2 CABLE FORCE ASSEMBLIES
5 FINAL CONFIGURATION
6 FURTHER PARAMETRIC STUDIES
7 FUTURE WORK
8 SUMMARY
REFERENCES
Modelling environmental effects on the dynamic characteristics of the Tamar suspension bridge
ABSTRACT
INTRODUCTION
The Tamar Suspension Bridge
ANALYSIS TECHNIQUES
Principal Component Analysis (PCA)
Meta Modelling
FIRST DAY ANALYSIS
SECOND DAY ANALYSIS
SUMMARY
REFERENCES
Structural Health Monitoring of Bridges in British Columbia, Canada
ABSTRACT
1 INTRODUCTION
2 GOALS AND OBJECTIVES OF THE SIMS PROJECT
The goals of this Project are to:
The objectives of this Project are to:
3 PROJECT SCHEDULE AND INTERNATIONAL COLLABORATIONS
4 COMPONENTS OF SIMS
5 SUMMARY AND CONCLUSIONS
ACKNOWLEDGMENTS
Structural Assessment of Damaged Bridges Using Ambient Vibration Testing
ABSTRACT
1 INTRODUCTION
2 BRIDGES TESTED AND RESULTS
GOAT FELL BRIDGE
Dutch Creek Bridge
Loop Bridge
3 CONCLUSIONS
ACKNOWLEDGMENTS
REFERENCES
Model Updating of the Ironworkers Memorial Second Narrows Bridge, Vancouver, Canada
1 INTRODUCTION
2 DESCRIPTION OF THE IMSNC
3 REAL-TIME SEISMIC MONITORING SYSTEM
4 SUMMARY OF AVT RESULTS
5 FINITE ELEMENT MODEL
6 FINITE ELEMENT MODEL UPDATING
7 SUMMARY AND CONCLUSIONS
ACKNOWLEDGMENTS
REFERENCES
Pre- and Post-identification Merging for Multi-Setup OMA with Covariance-Driven SSI
Abstract
1 Introduction
2 Reference-based Covariance-driven Stochastic Subspace Identification
2.1 Single Setup
2.2 Multiple Setups
3 Merging strategies
3.1 The PoSER approach
3.2 The PoGER approach
3.3 The PreGER approach
4 Output-only Modal Analysis of the Luiz I bridge
4.1 Bridge description and ambient vibration test
4.2 PoSER approach
4.3 PoGER approach
4.4 PreGER approach
5 Summary of results
6 Conclusions
References
Time-Variant Reliability and Load Rating of a Movable Bridge Using Structural Health Monitoring
ABSTRACT
NOMENCLATURE
INTRODUCTION
Definition of Structural Health Monitoring
Performance Assessment Methods based on Structural Health Monitoring
Objective and Scope
SHM SYSTEM DESIGN FOR SUNRISE BRIDGE
Bridge Description
Design of the sensor network
Finite Element Modeling of the Bridge
DATA ANALYSIS AND LONG TERM MONITORING
Real-time Data Analysis
Long Term Deterioration Effect
ASSESSMENT OF THE BRIDGE
Statistical Quantities
Component Reliability
Load Rating
CONCLUSIONS AND RECOMMENDATIONS
ACKNOWLEDGEMENTS
REFERENCES
Aerodynamic performance of bridges equipped small wind turbines
ABSTRACT
INTRODUCTION
PLACEMENT OF WIND TURBINES ON BRIDGES
WIND ENERGY ASSESSMENT
WIND TUNNEL TESTS
WIND ENERGY POTENTIAL
CONCLUSIONS
ACKNOWLEDGMENT
REFERENCES
Method for Vehicle Identification and Classification for Bridge Response Monitoring
NOMENCLATURE
ABSTRACT
INTRODUCTION
Vehicle detection
Vehicle of interest (VOI)
Traffic flow
Headway
Allowable vehicle limits
AVD algorithm tuning parameters
Response/vibration signature modeling
RESULTS AND DISCUSSION
Time of solitary existence (TSE)
Tuning Parameter 1 (Threshold of Detection, THD)
Video Analysis
Average detections from the video data
Average detections from the acceleration data
Comparison between the detection results
CONCLUDING REMARKS
REFERENCES
In-Situ Fatigue Sensors for Structural Health Monitoring of Highway Bridges
NOMENCLATURE
ABSTRACT
INTRODUCTION
IN-SITU FATIGUE SENSOR
STRAIN-LIFE FATIGUE ANALYSIS
EXPERIMENTAL DETAILS
Sensor Proof-of-Concept
In-Situ Fatigue Sensor Experiments
Specimens
Apparatus and Test Setup
FINITE ELEMENT ANALYSIS AND FATIGUE LIFE CALCULATIONS
RESULTS AND DISCUSSION
CONCLUDING REMARKS
ACKNOWLEDGEMENT
REFERENCES
Laser Vibrometry for Bridge Post-Repair Investigation
ABSTRACT
NOMENCLATURE
1 INTRODUCTION
2 EQUIPMENT
3 CORRELATION BETWEEN NATURAL FREQUENCIES AND STRUCTURAL BEHAVIOUR
4 SLDV DELAMINATION DETECTION WITH REMOTE ACOUSTIC EXCITATION
4.1 Laboratory Results
4.2 Field Test: Carbon Fibre Plate
4.3 Field Test: Quality Control of CFRP Reinforcement
4.4 Conclusions of Delamination Detection Tests
REFERENCES
Computer Vision for Structural Health Monitoring and Damage Detection of Bridges
ABSTRACT
1. INTRODUCTION
2. OBJECTIVE AND SCOPE
3. THEORETICAL BACKGROUND
4. EXPERIMENTAL STUDIES
4.1. Test Set-Up
4.2. Description of the Experiment
4.2.1. Damage Scenarios
5. DAMAGE DETECTION STATISTICAL ANALYSIS
5.1. Unit Influence Lines Results
5.2. Outliers Detection-Clustering
5.3. Identification of Damage
6. CONCLUSIONS
7. ACKNOWLEDGMENTS
8. REFERENCES
Experimental Investigation of Reykjavik City Footbridge
ABSTRACT
1 INTRODUCTION
2 DESCRIPTION OF THE STRUCTURE
3 MODAL IDENTIFICATION
3.1 FRF-based modal testing
3.2 Modal properties
4 VIBRATION PERFORMANCE UNDER HUMAN LOADING
4.1 Description of tests involving humans
4.2 Results from tests involving humans
4.2.1 Response to walking
4.2.2 Response to jogging
4.2.3 Response to jumping
5 CONCLUSION
ACKNOWLEDGEMENTS
REFERENCES
Baseline Model Establishment for a Bridge: I. Dynamic Testing
Nomenclature
Abstract
1. Introduction
2. Development of a bridge superstructure FE model
2.1 Preliminary bridge FE model
2.2 Updating the FE model
3. Modal study of the hybrid HPS bridge
3.1 Modal analysis
3.2 Impact modal testing
4. Conclusions and future works
Acknowledgment
References
Baseline Model Establishment for a Bridge: II. Static Load Testing
Abstract
1. Introduction
2. Static truck load testing
3. Load testing data analysis
4. Truck load static analysis using the FE model
5. Conclusions
Acknowledgment
Reference
Sensitivity Study of Stochastic Walking Load Models
ABSTRACT
NOMENCLATURE
1. INTRODUCTION
2. MODEL OF BRIDGE AND BRIDGE EXCITATION
3. MODELS FOR WALKING PARAMETERS
3.1 Pedestrian weight
3.2 Other walking parameters
4. CHARACTERISTICS OF BRIDGE RESPONSE
5. RESULTS
6. CONCLUSION AND DISCUSSION
REFERENCES
IDENTIFICATION OF HIGH-ORDER LOCAL VIBRATION PROPERTIES OF RC VIADUCT
ABSTRACT
1. INTRODUCTION
2. BASIC POSITION OF THE STUDY
(1) Local vibration problems
(2) Identification method and prerequisites
3. Vibration properties of a RC viaduct
(1) Outline of the target bridge and vibration measurement
(2) Comparison of members in vibration properties
(3) Equivalent vibration characteristics of the central slab
(4) Equivalent vibration characteristics of the overhanging slab
4. Conclusion
Acknowledgment
References
The Influence of Single Progressive Off-centered Crack on the Dynamics of Beam
Abstract
1.0 INTRODUCTION
2.0 OPERATIONAL MODAL ANALYSIS AS A DIANOSTIC TOOL
2.1 Frequency Domain Decomposition (FDD)
2.2 Enhanced Frequency Domain Decomposition (EFDD)
3.0 EXPERIMENTAL METHODS
3.1 Experimental Modal Analysis
3.1.1 Modal Test
3.1.2 Modal Identification
3.2 Operational Modal Analysis
3.2.1 Operational Modal Test
3.2.2 Operational Modal Identification
4.0 RESULTS AND DISCUSSION
5.0 CONCLUSIONS
6.0 ACKNOWLEDGEMENTS
7.0 REFERENCES

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