Doctoral project: Building systems of CLT and concrete – modelling and requirements during design
Structures that are primarily built in wood today are commonly combined with additional structural elements in concrete, for example in the foundation or elevator shafts. The aim of this doctoral project is to increase the understanding of how such hybrid structures with CLT in combination with concrete elements behave from a structural perspective.
Doctoral student Carl Larsson Supervisors Michael Dorn and Thomas K Bader, Linnaeus University; Åsa Bolmsvik, Skanska Sverige AB Participants Linnaeus University, Svenska byggbranschens utvecklingsfond (SBUF) Project start Oct 2019 Subject Building technology (Department of Building Technology, Faculty of Technology)
More about the project
Structures that are primarily built in wood today are commonly combined with additional structural elements in concrete, for example in the foundation or elevator shafts. The aim of this doctoral project is to increase the understanding of how such hybrid structures with CLT in combination with concrete elements behave from a structural perspective. The whole structure and global phenomena such as global stability and robustness will be looked at.
The result is a global structural model that takes into account the rigidity of the various materials and the connections between the elements made thereof. Based on the structural model and the results from the analysis, it is defined which requirements are to be placed on each structural element and the corresponding connections. The project results may be used by contractors and structural engineers when designing with CLT and concrete in combination in the structural and/or stabilizing parts. Similarly, the results will be used to optimize the overall structural design.
Give knowledge about requirements
The purpose of the research project is to give the industry and, above all, the contractors, knowledge about the requirements to place on the supplier of the structural elements – as well as release the contractors from requirements that are not possible to fulfill. The project will generate knowledge about how the overall structural model can be used, which inputs, variables, system choices etc are relevant. In order to gain an insight into how the industry works today, a survey will be conducted amongst contractors and structural designers.
The research project is being implemented as an industrial doctoral project with Skanska. It is funded by the Swedish Construction Industry's Organisation for Research and Development (Svenska byggbranschens utvecklingsfond, SBUF) and several producers, consultants and contractors are included in the reference group.