Share:


Experimental investigations on innovative crack repair methods and reinforcing steel structures with adhesivly bonded CFRP – lamellas

    Florian Sternsdorff Affiliation
    ; Yvonne Ciupack Affiliation
    ; Hartmut Pasternak Affiliation

Abstract

The paper describes some of the experiments carried out at the Chair of Steel and Timber Construction to reinforce steel with adhesively bonded CFRP lamellas.
The first topic deals with the repair of cracks in steel structures exposed to fatigue. The aim was to extend the remaining service life of these components by means of adhesively bonded CFRP lamellas and then to compare the results obtained with established methods for repairing cracks. In order to improve the informative value of the investigations, several test parameters such as adhesive candidates, temperature, creep effects, degrees of prestressing, load levels and the position of the reinforcement measures were varied.
The second set of topics examined the extent to which a typical steel beam-to-column connection can be reinforced with the help of adhesively bonded CFRP lamellas.


First published online 08 July 2022

Keyword : steel, CFRP, adhesive, fatigue, crack repair, reinforcement measure, experiments

How to Cite
Sternsdorff, F., Ciupack, Y., & Pasternak, H. (2021). Experimental investigations on innovative crack repair methods and reinforcing steel structures with adhesivly bonded CFRP – lamellas. Engineering Structures and Technologies, 13(1), 1–6. https://doi.org/10.3846/est.2021.15036
Published in Issue
Dec 31, 2021
Abstract Views
55
PDF Downloads
32
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

References

European Committee for Standardization. (1995). Adhesives – Designation of main failure patterns (DIN EN ISO 10365:1995-08) (German version). https://doi.org/10.31030/2792645

Kasper, Y., Albiez, M., Ciupack, Y., Geßler, A., Ummenhofer, H., Pasternak, H., & Feldmann, M. (2019). Application of carbon fibre composite materials for the rehabilitation of fatigue damaged steel structures. In A. Zingoni (Ed.). Advances in engineering materials, structures and systems: innovations, mechanics and applications. Taylor & Francis Group. https://doi.org/10.1201/9780429426506-370

Kasper, Y., Albiez, M., Ciupack, Y., Geßler, A., Ummenhofer, H., Pasternak, H. & Feldmann, M. (2020a). Verstärkung von ermüdungsbeanspruchten Stahlbauteilen mit aufgeklebten CFK-Lamellen – Teil 1: Grundlagen und Materialien. Bauingenieur, 95(3), 79–84. https://doi.org/10.37544/0005-6650-2020-03-27

Kasper, Y., Albiez, M., Ciupack, Y., Geßler, A., Ummenhofer, H., Pasternak, H., & Feldmann, M. (2020b). Verstärkung von ermüdungsbeanspruchten Stahlbauteilen mit aufgeklebten CFK-Lamellen – Teil 2: Experimentelle Rissfortschrittsuntersuchungen. Bauingenieur, 96(5), 166–173. https://doi.org/10.37544/0005-6650-2020-05-36

Linghoff, D., Al-Emrani, M., & Kliger, R. (2010). Performance of steel beams strengthened with CFRP laminate – Part 1: Laboratory tests. Composites Part B: Engineering, 41(7), 509–515. https://doi.org/10.1016/j.compositesb.2009.05.008

Linghoff, D., & Al-Emrani, M. (2010). Performance of steel beams strengthened with CFRP laminate – Part 2: FE analyses. Composites Part B: Engineering, 41(7), 516–522. https://doi.org/10.1016/j.compositesb.2009.07.002

Narmashiri, K., & Al-Emrani, M. (2012). Failure analysis and structural behaviour of CFRP strengthened steel I-beams. Construction and Building Materials, 30, 1–9. https://doi.org/10.1016/j.conbuildmat.2011.11.009

Pasternak, H., & Meinz, J. (2006). Investigation of adhesive reinforcements in steel building structures. Bauingenieur, 81(5) (in German).

Rizkalla, S., & Dawood, M. (2006, July). High modulus carbon fiber materials for retrofit of steel structures and bridges. In Proc ACUN-5 “Developments in Composites: Advanced, Infrastructural, natural and Nano-composites”. UNSW, Sidney, Australia.

Schnerch, D., Dawood, M., Rizkalla, S., & Sumner, E. (2007). Proposed design guidelines for strengthening of steel bridges with FRP materials. Construction and Building Materials, 21(5), 1001–1010. https://doi.org/10.1016/j.conbuildmat.2006.03.003

Sternsdorff, F., Ciupack, Y., Yilmaz, E. M., Pasternak, H., & Vayas, I. (2020, March). Investigations on beam-to-column connections reinforced with adhesively bonded CFRP lamellas [Conference presentation]. The 7th International Conference “Civil Engineering – Science and Practice”. Kolašin, Montenegro.