Seismic Behavior of Fatigue-Retrofitted Steel Frame Piers

Kinoshita, K.


Fatigue retrofit works have been conducted on severely fatigue damaged beam-to-column connections of existing steel frame bridge piers in Japan. It is clear that retrofit works provides additional stiffness but the significance on the seismic behavior of steel frame piers is not clear. Since fatigue retrofit works have become prevalent, the effect of fatigue retrofit works on the seismic behavior of steel frame piers need to be understood. The objective of this study is therefore to investigate these effects of the retrofit work, especially installation of bolted splices, which is the most common technique. Elasto-plastic finite element earthquake response analyses were carried out. It is shown that the existence of bolted splices may increase seismic demand on the piers when plastic hinge zone is located on the beam. In addition, longer bolted splices using low yield strength steel are proposed to overcome this problem and are shown to give beneficial effects.


Beam-to-column connections, fatigue damage, fatigue retrofit works, seismic behavior.

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  1. Morikawa, H., Shimozato, T., Miki, C., and Ichikawa, A., Study on Fatigue Cracking in Steel Bridge Piers with Box Section and Temporally Repairing, Journal of Structure Mechanics and Earthquake Engineering, Japan Society of Civil Engineers, 703, 2002, pp. 177-183. (In Japanese).
  2. Miki, C., Ichikawa, A., Sakamoto, T., Tanabe, A., Tokida, H., and Shimozoto, T., Fatigue Performance of Beam-to-Column Connections with Box Sections in Steel Bridge Frame Piers, Journal of Structure Mechanics and Earthquake Engineering, JSCE, 710, 2002, pp. 361-371. (In Japanese).
  3. Miki, C., Ichikawa, A., Tanabe, A., and Kinoshita, K., Rib Installation Effects for Fatigue Strengths of Beam-to-Column Connections, IIW Annual Assembly, International Institute of Welding, Doc. XIII-2025-04, 2004.
  4. Konishi, T., Miki, C., Hirabayashi, Y., and Shimozato, T., Inspection and Repair of Fatigue Cracks in Steel Bridge Piers, IIW Annual Assembly, International Institute of Welding, Doc. XIII- 2026-04, 2004.
  5. Miki, C. and Hirabayashi, Y., Fatigue Damage Cases due to Inappropriate Fabrication in Steel Bridge Structures, Doboku Gakkai Ronbunshuu A, 63(3), JSCE, 2007, pp. 518-532 (In Japanese).
  6. Miki, C., Hirabayashi, Y., Tokida, H., Konishi, T., and Yaginuma, Y., Beam-Column Connection Details of Steel Pier and Their Fatigue Damage Mode, Journal of Structural Mechanics and Earthquake Engineering, 745, JSCE, 2002, pp. 105-119. (In Japanese).
  7. Miki, C., Sasaki, E., and Shimozato, T., Seismic Resistance Verification of Fatigue Retrofitted Steel Bridge Bents (A Case Study in the Metropolitan Expressway), Proceedings of the Second International Conference on Urban Earthquake Engineering, Tokyo, Japan, March 7-8, 2005, pp. 77-84.
  8. Shimozato, T., Hirabayashi, Y., Hirayama, S., and Sasaki, T., Analytical Study on Load Carrying Capacity of Steel Bridge Pier considering Reinforcement with Bolted Plate and Weld Defect, Journal of Structural Engineering, JSCE, Vol. 54A, 2008, pp. 512-521. (In Japanese).
  9. Kinoshita, K., Earthquake Response Analysis of Fatigue Retrofitted Existing Steel Bridge Frame Piers, The 13th JSCE International Summer Symposium, Kyoto, Japan, August 26, 2011, pp. 31-34.
  10. Sasaki, E., Miki, C., Ichikawa, A., and Takahashi, K., Behavior of Steel Bridge Frame Piers During Earthquakes, Journal of Structural Engineering, JSCE, Vol. 50A, 2004, pp. 1467-1477. (In Japanese)
  11. Miki, C. and Sasaki, E., Fracture in Steel Bridge Piers due to Earthquakes, International Journal of Steel Structures, 5(2), 2005, pp. 133-140.
  12. Kinoshita, K., Miki, C., and Ichikawa, A., Study on Seismic Performance of Existing Steel Bridge Frame Piers with Circular Column, Doboku Gakkai Ronbunshuu A, 64(3), JSCE, 2008, pp. 571-587 (In Japanese).
  13. Kinoshita, K., Effects of Superstructures on Seismic Behavior of Steel Bridge Frame Piers with Circular Columns, The Sixth International Conference on Bridge Maintenance, Safety and Management, Stresa, Italy, July 8-12, 2012, pp. 3302-3309.
  14. Imamura, K. and Takahashi, M., Retrofitting of Existing Piers in Metropolitan Expressway, Bridge and Foundation Engineering, Vol. 33, 1999, pp. 163-165. (In Japanese).
  15. Konishi, T., Shimozato, T., Shibuya, A., and Miki, C., Relationship between Bolt Splicing Plate Size and Its Effectiveness of Stress Reduction of Box Section Beam-to-Column Connections, JSCE 58th Annual Assembly, JSCE, I-427, 2003, pp. 853-854. (In Japanese).
  16. ABAQUS, ABAQUS/Standard User’s Manual, Hibbitt, Karlsson & Sorensen, 2006.
  17. Wibowo, H., Sanford, D.M., Buckle, I.G., and Sanders, D.H., Effects of Live Load on Seismic Response of Bridges: A Preliminary Study, Civil Engineering Dimension, Vol. 14(3), 2012 (Special Edition), pp. 166-172.
  18. Japan Road Association, Design Specifications of Highway Bridges, Part V, Seismic Design, Japan Road Association, 2002.
  19. JIS G 3101, Rolled Steels for General Structure, Japanese Industrial Standards Committee, 2010. (In Japanese).
  20. JIS G 3106, Rolled Steels for Welded Structure, Japanese Industrial Standards Committee, 2008. (In Japanese).
  21. Committee of Steel Structures of JSCE and JSSC, Benchmark Test for the Seismic Analysis of Steel Structure and Upgrading of Seismic Design Method, 2000. (In Japanese).
  22. Beer, F.P. and Johnston, E.R. Jr., Mechanics of Materials, Second edition, McGraw-Hill, London, 1992.
  23. Chopra, A.K., Dynamics of Structures, Second edition, Prentice-Hall, New Jersey, 2001.


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