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Patch Plate Repair Method for Steel Structures Combining Adhesives and Stud Bolts

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Abstract

Recently, a repair method by bonding patch plates is being applied to corroded steel structures. However, one of the issues of patch plate bonding repair is the brittle debonding of the patch plates. Generally, when the delamination of the patch plates occurs, the composite effect acting between the steel members and patch plates abruptly decreases. Therefore, to prevent the brittle debonding of the patch plates, a repair method combining an adhesive and stud bolts is proposed. Till date, tensile and compressive tests have been performed for the proposed method. In this study, plate bending tests were conducted to verify the effectiveness of this method under bending conditions. Furthermore, two types of epoxy resin-based adhesives were prepared to evaluate the effectiveness of the proposed method with different adhesive properties. The test results show that the proposed method is able to prevent the brittle debonding of the patch plates in the case of both epoxy resins.

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Acknowledgements

The authors gratefully acknowledge the financial support provided by The Japan Iron and Steel Federation. The authors would also like to thank Mr. Horii, H. of Konishi Co., Ltd for supplying the adhesive materials.

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Authors and Affiliations

  1. Department of Civil, Environmental, and Applied Systems Engineering, Kansai University, Osaka, Japan

    T. Ishikawa & T. Ikeda

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  1. T. Ishikawa
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  2. T. Ikeda
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Correspondence to T. Ishikawa.

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Ishikawa, T., Ikeda, T. Patch Plate Repair Method for Steel Structures Combining Adhesives and Stud Bolts. Int J Steel Struct 18, 1410–1419 (2018). https://doi.org/10.1007/s13296-018-0149-0

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  • DOI: https://doi.org/10.1007/s13296-018-0149-0

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