Doctoral thesis (Dissertations and theses)
Investigation of the Load-Bearing Behaviour of CoSFB-Dowels
Braun, Matthias Volker
2018
 

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Keywords :
slim-floor beam; composite design; CoSFB; CoSFB-Dowels; push-out tests; numerical simulation; ductile damage for metals; shear damage
Abstract :
[en] This Thesis is the first PhD thesis written about CoSFB-Dowels. Therefore, focus of the scientific work presented here, was on the identification of parameters influencing the load-bearing behaviour in general and on parameters contributing to the load-bearing capacity of CoSFB-Dowels in detail. A CoSFB-Dowel is an innovative shear connector for steel-concrete composite slim-floor beams. It consists of circular openings drilled in the web of the steel section with reinforcement bars passing through and filled with normal concrete in-situ. Push-out tests have been performed already in an earlier research project initiated by the author. In this Thesis, detailed analysis of the test results was done and a finite element model developed simulating the push-out tests, which led to an improved understanding of the overall load-bearing behaviour. Further, the numerical model was used to identify and to evaluate components contributing to the stiffness, to the linear-elastic load and to the maximum load. The findings of this research led to the formulation of a mechanical model and an analytical method to evaluate the load-bearing capacity of a CoSFB-Dowel. The analytical method was validated with the test results. This Thesis is concluded by a proposal allowing for a conservative determination of the design resistance of CoSFB-Dowels.
Disciplines :
Civil engineering
Mechanical engineering
Materials science & engineering
Author, co-author :
Braun, Matthias Volker ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Language :
English
Title :
Investigation of the Load-Bearing Behaviour of CoSFB-Dowels
Defense date :
2018
Number of pages :
158 + 48
Institution :
Unilu - University of Luxembourg, Luxembourg, Luxembourg
Degree :
Docteur en Sciences de l'Ingénieur
Promotor :
Odenbreit, Christoph 
Reif, Ferdinand
Kuhlmann, Ulrike
Vassart, Olivier
President :
Focus Area :
Physics and Materials Science
Available on ORBilu :
since 08 October 2018

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