TY - CHAP A1 - Ledecky, Lukas A1 - Ciupack, Yvonne A1 - Pasternak, Hartmut A1 - Geßler, Achim A1 - Feldmann, Markus A1 - Kasper, Yann A1 - Albiez, Matthias A1 - Ummenhofer, Thomas T1 - Untersuchungen zur Ermüdungsrisssanierung mit aufgeklebten CFK-Lamellen im Stahlbau T2 - 110 Jahre DASt und 21. DASt-Forschungskolloquium an der Technischen Universität Kaiserslautern Y1 - 2018 SN - 978-3-941687-27-1 SP - 116 EP - 121 PB - Deutscher Ausschuß für Stahlbau DASt CY - Düsseldorf ER - TY - GEN A1 - Ciupack, Yvonne A1 - Ledecky, Lukas A1 - Kasper, Yann A1 - Geßler, Achim A1 - Albiez, Matthias A1 - Pasternak, Hartmut A1 - Ummenhofer, Thomas A1 - Feldmann, Markus ED - Juozapaitis, Algirdas ED - Daniūnas, Alfonsas ED - Juknevičius, Linas T1 - Strengthening of steel structures with fatigue cracks using adhesively bonded non-prestressed and prestressed CFRP lamellas T2 - The 13th International Conference MODERN BUILDING MATERIALS, STRUCTURES AND TECHNIQUES, 16–17 May 2019, Vilnius, Lithuania Vilnius Gediminas Technical University N2 - In comparison to classic strengthening methods of fatigue-damaged steel structures, adhesively bonded CFRP lamellas show several advantages. Compared to bolted reinforcement measures and the drilling of the crack tip, crosssectional weakening is avoided. Heat-induced, negatively acting residual stresses and distortions, usually occurring during repair welding, can also be excluded. Therefore, the effectiveness of adhesively bonded CFRP lamellas to enhance the remaining lifetime of fatigue damaged steel structures is examined in a German research project. Selected results are presented in this paper. To characterize the steel, CFRP and adhesive materials, different tests on small scale specimens are carried out. With the help of fatigue tests on CT-samples the remaining fatigue lifetimes of specimens strengthened with adhesively bonded CFRP lamellas is compared to the remaining lifetimes of specimens strengthened by established methods such as drilling the crack tip and repair welding. Based on the evaluation of the crack propagation after the rehabilitation measures, the great potential of adhesively bonded CFRP reinforcements can be deduced. By prestressing the lamellas, the remaining lifetime can generally be increased further. The combination of adhesively bonded CFRP lamellas together with established rehabilitation methods shows a particularly high positive influence on the remaining lifetime of the CT-specimens. Y1 - 2019 SN - 978-609-476-197-3 U6 - https://doi.org/10.3846/mbmst.2019.068 SN - 2029-9915 SP - 252 EP - 260 ER - TY - GEN A1 - Feldmann, Markus A1 - Ummenhofer, Thomas A1 - Geßler, Achim A1 - Pasternak, Hartmut A1 - Kasper, Yann A1 - Albiez, Matthias A1 - Ciupack, Yvonne A1 - Ledecky, Lukas T1 - Einsatz geklebter CFK-Lamellen zur Verstärkung ermüdungsgeschädigter Stahlkonstruktionen T2 - Schweissen und Schneiden: Fachzeitschrift für Schweißen und verwandte Verfahren Y1 - 2019 SN - 0036-7184 IS - 11 SP - 738 EP - 745 ER - TY - GEN A1 - Kasper, Yann A1 - Albiez, Matthias A1 - Ciupack, Yvonne A1 - Geßler, Achim A1 - Ummenhofer, Thomas A1 - Pasternak, Hartmut A1 - Feldmann, Markus T1 - Verstärkung von ermüdungsbeanspruchten Stahlbauteilen mit aufgeklebten CFK-Lamellen - Teil 1: Grundlagen T2 - Bauingenieur Y1 - 2020 SN - 0005-6650 VL - 95 IS - 3 SP - 79 EP - 84 ER - TY - GEN A1 - Kasper, Yann A1 - Albiez, Matthias A1 - Ciupack, Yvonne A1 - Geßler, Achim A1 - Ummenhofer, Thomas A1 - Pasternak, Hartmut A1 - Feldmann, Markus T1 - Verstärkung von ermüdungsbeanspruchten Stahlbauteilen mit aufgeklebten CFK-Lamellen - Teil 2: Experimentelle Rissfortschrittsuntersuchungen T2 - Bauingenieur Y1 - 2020 SN - 0005-6650 VL - 95 IS - 5 SP - 166 EP - 173 ER - TY - GEN A1 - Kasper, Yann A1 - Albiez, Matthias A1 - Ummenhofer, Thomas A1 - Mayer, Christoph A1 - Meier, Tobias A1 - Choffat, Fabien A1 - Ciupack, Yvonne A1 - Pasternak, Hartmut T1 - Application of toughened epoxy-adhesives for strengthening of fatigue-damaged steel structures T2 - Construction and Building Materials Y1 - 2021 U6 - https://doi.org/10.1016/j.conbuildmat.2020.121579 SN - 0950-0618 VL - 275 ER - TY - GEN A1 - Kasper, Yann A1 - Albiez, Matthias A1 - Ummenhofer, Thomas A1 - Ciupack, Yvonne A1 - Ledecky, Lukas A1 - Pasternak, Hartmut A1 - Geßler, Achim A1 - Feldmann, Markus ED - Zingoni, Alphose T1 - Application of carbon fibre composite materials for the rehabilitation of fatigue damaged steel structures T2 - Advances in engineering materials, structures and systems : innovations, mechanics and applications : proceedings of the 7th International Conference on Structural Engineering, Mechanics, and Computation (SEMC 2019), September 2-4, 2019, Cape Town, South Africa Y1 - 2019 SN - 978-1-138-38696-9 SP - 2148 EP - 2153 PB - Taylor & Francis Group CY - London ER - TY - GEN A1 - Ciupack, Yvonne A1 - Pasternak, Hartmut A1 - Geßler, Achim A1 - Feldmann, Markus A1 - Kasper, Yann A1 - Albiez, Matthias A1 - Ummenhofer, Thomas T1 - Repair of Fatigue Cracked CT-specimens Using Adhesively Bonded CFRP Lamellas T2 - 27th Annual International Conference on Composites / Nano Engineering ICCE-27 Y1 - 2019 UR - https://www.b-tu.de/fg-stahlbau/publikationen/veroeffentlichungen ER -