Zum Tragverhalten von Verbunddübeln [Teil 2]

Load bearing behaviour of composite dowels — Fatigue behaviour (part II).

Composite dowels realise a high load bearing capacity and ductile connection between steel members and concrete parts. Using these composite dowels for shear transmission new systems of composite construction can be designed. The first part deals with the technology of composite dowels, it's bearing behaviour and the design of the connection under static loads. For the use in bridges the cyclic load bearing behaviour becomes more important and on this is the focus of this paper.
The behaviour of the new connection under fatigue loads is investigated by cyclic loaded simple supported beam tests compared to numerical simulations and a design concept is established on the basis of a hot spot model. The investigations are restricted to composite dowels implementing the modified clothoidal shape (MCL).