Heat-straightening Repair of Damaged Steel Bridge Girders: Fatigue and Fracture Performance

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Transportation Research Board, Jan 1, 2008 - Bridges, Iron and steel - 129 pages
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This report summarizes the results of a project to establish limits, based on fatigue and fracture performance, on the number of damage and repair cycles to which damaged steel bridge girders may be subjected using the heat-straightening procedure. A key product presented here is suggested revisions to the Federal Highway Administration (FHWA) manual of practice for heat straightening. The report will be of particular interest to engineers in state highway agencies and industry responsible for bridge maintenance and repair.
 

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Contents

Summary
1
Chapter 1 Introduction and Research Approach
3
Chapter 2 Findings
16
Chapter 3 Interpretation Appraisal and Applications
55
Chapter 4 Conclusions and Suggested Research
59
References
61
Appendix A Drawings
62
Appendix B Fatigue Test Results
89
Appendix C Material Properties
92
Appendix D Proposed Revisions to FHWA Manual
108
Abbreviations used without definitions in TRB publications
130
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