Doctoral candidate(PhD-Student) in Civil Engineering

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label Burse autorenew 2025-09-29, 17:01 history_edu Ioana Dinescu
Under the condition that the project is selected, the positions will be financed by the Luxembourgish AFR (Aide Formation Recherche) fellowship.
  • 3 years contract, possible extension of further 1 year, 40 h per week
  • student status
The PhD-student will work under the guidance of a professor on a research theme but will also assist in teaching with 1 hour per week. She/he should finish work with a doctoral degree in engineering science.

Theme:
Optimization of the design of steel decks for composite slabs as a function of the mechanical



Project Description:
Composite slabs offer the advantage of a more economical design with reduced structural mass in combination with a more rapid execution compared to the conventionally produced reinforced concrete slabs. Mainly concrete with densities of 2.0 to 2.5 kg/dm3 are used. However, a further reduction of weight can be achieved through the use of lightweight concretes with densities < 2.0 kg/dm3. But the composite action of these lightweight concretes with a steel sheet profile differs substantially from the interaction of normal concrete with a sheet profile.

This can be explained by the changed mechanical properties of lightweight concrete compared to a normal concrete such as the strength, the elastic modulus, Poisson’s ratio and creeping and shrinkage. Here, in particular, the composite stiffness of both partners must be adjusted. In this process an independent optimization potential must be accorded not only to the concrete, but also the steel sheet profile through a customized profile shape, profile thickness, location, orientation and design of bond burling and corrugations