Load Testing of Bridges : Proof Load Testing and the Future of Load Testing book cover
1st Edition

Load Testing of Bridges
Proof Load Testing and the Future of Load Testing

Edited By

Eva O.L. Lantsoght

ISBN 9780367210830
Published July 29, 2019 by CRC Press
428 Pages

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Book Description

Load Testing of Bridges, featuring contributions from almost fifty authors from around the world across two interrelated volumes, deals with the practical aspects, the scientific developments, and the international views on the topic of load testing of bridges.

Volume 13, Load Testing of Bridges: Proof Load Testing and the Future of Load Testing, focuses first on proof load testing of bridges. It discusses the specific aspects of proof load testing during the preparation, execution, and post-processing of such a test (Part 1). The second part covers the testing of buildings. The third part discusses novel ideas regarding measurement techniques used for load testing. Methods using non-contact sensors, such as photography- and video-based measurement techniques are discussed. The fourth part discusses load testing in the framework of reliability-based decision-making and in the framework of a bridge management program. The final part of the book summarizes the knowledge presented across the two volumes, as well as the remaining open questions for research, and provides practical recommendations for engineers carrying out load tests.

This work will be of interest to researchers and academics in the field of civil/structural engineering, practicing engineers and road authorities worldwide.

Table of Contents

Part I Proof Load Testing of Bridges

Chapter 1 Methodology for Proof Load Testing
Eva O. L. Lantsoght
1.1 Introduction
1.2 Determination of target proof load
1.3 Procedures for proof load testing
1.4 Processing of proof load testing results
1.5 Bridge assessment based on proof load tests
1.6 Summary and conclusions

Chapter 2 Load Rating of Prestressed Concrete Bridges without Design Plans by Nondestructive Field Testing
David V. Jauregui, Brad D. Weldon, and Carlos V. Aguilar
2.1 Introduction
2.2 Inspection and evaluation procedures
2.3 Case studies
2.4 Conclusions

Chapter 3 Example of Proof Load Testing from Europe
Eva O. L. Lantsoght, Dick A. Hordijk, Rutger T. Koekkoek, and Cor van der Veen
3.1 Introduction to viaduct Zijlweg
3.2 Preparation of proof load test
3.3 Execution of proof load test
3.4 Post-processing and rating
3.5 Summary and conclusions

Part II Testing of Buildings

Chapter 4 Load Testing of Concrete Building Constructions
Gregor Schacht, Guido Bolle, and Steffen Marx
4.1 Historical development of load testing in Europe
4.2 Load testing of existing concrete building constructions
4.3 New developments
4.4 Practical recommendations
4.5 Summary and conclusions

Part III Advances in Measurement Techniques for Load Testing

Chapter 5 Digital Image and Video-Based Measurements
Mohamad Alipour, Ali Shariati, Thomas Schumacher, Devin K. Harris, and C. J. Riley
5.1 Introduction
5.2 Digital image correlation (DIC) for deformation measurements
5.3 Eulerian virtual visual sensors (VVS) for natural frequency measurements
5.4 Recommendations for practice
5.5 Summary and conclusions
5.6 Outlook and future trends

Chapter 6 Acoustic Emission Measurements for Load Testing
Mohamed ElBatanouny, Rafal Anay, Marwa A. Abdelrahman, and Paul Ziehl
6.1 Introduction
6.2 Acoustic emission–based damage identification
6.3 Source location during load tests
6.4 Discussion and recommendations for field applications

Chapter 7 Fiber Optics for Load Testing
Joan R. Casas, António Barrias, Gerardo Rodriguez Gutiérrez, and Sergi Villalba
7.1 Introduction
7.2 Distributed optical fibers in load testing
7.3 Conclusions

Chapter 8 Deflection Measurement on Bridges by Radar Techniques
Carmelo Gentile
8.1 Introduction
8.2 Radar technology and the microwave interferometer
8.3 Accuracy and validation of the radar technique
8.4 Static and dynamic tests of a steel-composite bridge
8.5 A challenging application: structural health monitoring of stay cables
8.6 Summary

Part IV Load Testing in the Framework of Reliability-Based Decision-Making and Bridge Management Decisions

Chapter 9 Reliability-Based Analysis and Life-Cycle Management of Load Tests
Dan M. Frangopol, David Y. Yang, Eva O. L. Lantsoght, and Raphael D. J. M. Steenbergen
9.1 Introduction
9.2 Influence of load testing on reliability index
9.3 Required target load for updating reliability index
9.4 Systems reliability considerations
9.5 Life-cycle cost considerations
9.6 Summary and conclusions

Chapter 10 Determination of Remaining Service Life of Reinforced Concrete Bridge Structures in Corrosive Environments after Load Testing
Dimitri V. Val and Mark G. Stewart
10.1 Introduction
10.2 Deterioration of RC structures in corrosive environments
10.3 Reliability-based approach to structural assessment
10.4 Corrosion initiation modeling
10.5 Corrosion propagation modeling
10.6 Effect of spatial variability on corrosion initiation and propagation
10.7 Influence of climate change
10.8 Illustrative examples
10.9 Summary

Chapter 11 Load Testing as Part of Bridge Management in Sweden
Lennart Elfgren, Bjorn Täljsten, and Thomas Blanksvärd
11.1 Introduction
11.2 History
11.3 Present practice
11.4 Future
11.5 Conclusions

Chapter 12 Load Testing as Part of Bridge Management in the Netherlands
Ane de Boer
12.1 Introduction
12.2 Overview of load tests on existing structures
12.3 Inspections and re-examination
12.4 Conclusions and outlook

Part V Conclusions and Outlook

Chaper 13 Conclusions and Outlook
Eva O. L. Lantsoght
13.1 Current body of knowledge on load testing
13.2 Current research and open research questions
13.3 Conclusions and practical recommendations

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Dr. Lantsoght graduated with a Master’s Degree in Civil Engineering from the Vrije Universiteit Brussel (Brussels, Belgium) in 2008. She later earned a Master's degree in Structural Engineering at the Georgia Institute of Technology (Atlanta, Georgia, USA) in 2009 and the title of Doctor in Structural Engineering from Technische Universiteit Delft (Delft, the Netherlands) in 2013. The work experience of Dr. Lantsoght includes design work in structural and bridge engineering in Belgium (Establis, and Ney & Partners) and working as an independent consultant in structural engineering in Ecuador (Adstren). Dr. Lantsoght is an active member of the technical committees of the Transportation Research Board in Concrete Bridges (AFF-30) and Testing and Evaluation of Transportation Structures (AFF-40), a member of the technical committees of the American Concrete Institute and Deutscher Ausschuß für Stahlbeton Shear Databases (ACI-DAfStb-445-D), and the joint ACI-ASCE (American Society of Civil Engineers) committee on Design of Reinforced Concrete Slabs (ACI-ASCE 421), and an associate member of the committees on Evaluation of Concrete Bridges and Concrete Bridge Elements (ACI 342), on Shear and Torsion (ACI-ASCE 445), and on Strength Evaluation of Existing Concrete Structures (ACI 437). In the academic field, Dr. Lantsoght is a full professor at the Universidad San Francisco de Quito (Quito, Ecuador) and a researcher at Technische Universiteit Delft (Delft, Netherlands). Her field of research is the design and analysis of concrete structures and analysis of existing bridges.