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Investigations on the buckling behaviour due to different launching bearings

 Investigations on the buckling behaviour due to different launching bearings
Auteur(s): , , ,
Présenté pendant IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021, publié dans , pp. 1974-1981
DOI: 10.2749/ghent.2021.1974
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In general, today two types of launching bearings are used in the construction of large steel and steel concrete composite bridges, sliding rockers and systems with hydraulic bearings. During incre...
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Détails bibliographiques

Auteur(s): (Technical University Munich, Chair of Metal Structures)
(Technical University Munich, Chair of Metal Structures)
(Technical University Munich, Chair of Metal Structures)
(Technical University Munich, Chair of Metal Structures)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021
Publié dans:
Page(s): 1974-1981 Nombre total de pages (du PDF): 8
Page(s): 1974-1981
Nombre total de pages (du PDF): 8
DOI: 10.2749/ghent.2021.1974
Abstrait:

In general, today two types of launching bearings are used in the construction of large steel and steel concrete composite bridges, sliding rockers and systems with hydraulic bearings. During incremental launching, the center of the webs of the superstructure is not perfectly in line with the center of the launching bearings due to unavoidable tolerances. The advantages and disadvantages of the respective systems are under discussion. At the Technical University Munich, large-scale buckling tests were carried out on longitudinally stiffened plates under biaxial stresses with different types of launching bearings and eccentric load introduction. In this paper the test results as well as differences of the respective systems are presented. Based on experimental results, a numerical model is validated. The test results as well as the results from the validated numerical model demonstrate the influence on the buckling behaviour from different types of launching bearings.

Mots-clé:
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Copyright: © 2021 International Association for Bridge and Structural Engineering (IABSE)
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