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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations
| REPORT |
| This report is an archived publication and may contain dated technical, contact, and link information |
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| Publication Number: FHWA-HRT-17-110 Date: January 2018 |
Publication Number: FHWA-HRT-17-110 Date: January 2018 |
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This report documents limited fatigue testing of I-beams where webs and flanges were joined together with a solid-state, high-frequency welding process. The results of the testing show these beams have commensurate fatigue strength with those welded using traditional fusion welding processes. Solid-state welding offers the advantage of faster welding speed with less heat input, resulting in less distortion, which would be of benefit to the steel fabrication industry. The results of this work would benefit those interested in the fatigue behavior of welded beams used in the construction of steel bridges, including State transportation departments, researchers, and design consultants.
Cheryl Allen Richter, Ph.D., P.E.
Director, Office of Infrastructure
Research and Development
Notice
This document is disseminated under the sponsorship of the U.S. Department of Transportation (USDOT) in the interest of information exchange. The U.S. Government assumes no liability for the use of the information contained in this document.
The U.S. Government does not endorse products or manufacturers. Trademarks or manufacturers’ names appear in this report only because they are considered essential to the objective of the document.
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Technical Report Documentation Page
| 1. Report No.
FHWA-HRT-17-110 |
2. Government Accession No.
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3 Recipient's Catalog No.
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| 4. Title and Subtitle
Fatigue Performance of High-Frequency Welded Steel I-Beams |
5. Report Date January 2018 |
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| 6. Performing Organization Code
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| 7. Author(s)
Benjamin Cross, Ph.D., and Justin Ocel, Ph.D., P.E. |
8. Performing Organization Report No.
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9. Performing Organization Name and Address Professional Service Industries, Inc. |
10. Work Unit No. (TRAIS) |
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| 11. Contract or Grant No.
DTFH61-10-D-00017 |
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| 12. Sponsoring Agency Name and Address
Office of Infrastructure Research and Development |
13. Type of Report and Period Covered
Final Report; June 2013–June 2016 |
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14. Sponsoring Agency Code HRDI-40 |
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| 15. Supplementary Notes
The FHWA Contracting Officer's Representative for this report was Fassil Beshah (HRDI-40). |
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| 16. Abstract
Fatigue is an important consideration in the design of steel bridges. Historically, the fatigue strength of welded details has been based on full-scale experimental testing. This work looked at the fatigue strength of I-beams that used solid-state, high-frequency welds to make the web-to-flange welds, where traditionally this would be performed with fusion welding processes. The specimens closely replicated those used to derive the current category B classification of web-to-flange welds. The limited fatigue testing demonstrated the fatigue resistance was approximately category B; however, it is only based on three specimens, and additional testing is warranted. |
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| 17. Key Words
Steel bridges, fatigue, solid-state welding, high-frequency welding |
18. Distribution Statement
No restrictions. This document is available through the National Technical Information Service, Springfield, VA 22161. |
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19. Security Classification Unclassified |
20. Security Classification Unclassified |
21. No. of Pages 25 |
22. Price
N/A |
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| Form DOT F 1700.7 (8-72) | Reproduction of completed page authorized |
SI* (Modern Metric) Conversion Factors
AASHTO |
American Association of State Highway and Transportation Officials |
CJP |
complete joint penetration |
HF |
high-frequency |
