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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Stammen, Elisabeth
Technische Universität Braunschweig
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2022A temperature- and conversion-dependent cohesive zone approach for the calculation of process-induced damage in adhesive bondlines of multi-material structurescitations
- 2022Characterization of adhesive curing reactions using rapid heat rheology
- 2022Durability of adhesively bonded timber-concrete-composite constructions joined by fast heated structural adhesive bond linescitations
- 2022Improvement of the Fatigue Strength of Steel Bridges by Adhesively Bonded Steel Patches—Adhesives and Processescitations
- 2021Wood foam and textile reinforced concrete in sandwich elements and self-supporting modules to modernize intermediate ceilings in old-building renovation
- 2020Review on Adhesives and Surface Treatments for Structural Applications: Recent Developments on Sustainability and Implementation for Metal and Composite Substratescitations
- 2020Review on adhesives and surface treatments for structural applications : recent developments on sustainability and implementation for metal and composite substratescitations
- 2020Structural sandwich composites out of wood foam core and textile reinforced concrete sheets for versatile and sustainable use in the building industrycitations
Places of action
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booksection
Improvement of the Fatigue Strength of Steel Bridges by Adhesively Bonded Steel Patches—Adhesives and Processes
Abstract
<jats:p>Steel bridges with orthotropic roadway decks are a common construction method for long-span bridges. The construction method was developed in the 1960s, and the early structures especially show increasing crack damage. On the one hand this is due to construction errors; on the other hand it is due to massively increased traffic loads. There is already a demand for rehabilitation methods that do not weaken the cross-section such as bolted solutions or exert thermal influence such as welding seams, but there are no reliable and economical alternatives so far. Here, rehabilitation methods with bonded steel patches using structural, cold-curing epoxy resin or polyurethane adhesives seem to be the method of choice, for which solutions are being developed in a German research project. Extensive results on adhesive selection and mechanical properties as well as on surface treatment with regard to the manufacturing process are presented here. Analytical calculations are used to identify the main factors determining the load-bearing behavior of bonded steel patches. The calculations were validated by means of extensive small-scale and component tests on four different notch details as well as with the aid of numerical calculations, which are, however, presented in a separate publication. However, in addition to bridge construction, this type of patch rehabilitation is also of interest to other branches of the steel construction industry, such as offshore structures, crane construction, or rail vehicles. The promising results are currently being continued and transferred to a follow-up project.</jats:p>