Ramboll Denmark prefers Strusoft FEM-Design for concrete structures
A 100-meter-tall tower is being built in the new Carlsberg City area in Copenhagen. The impressive tower is the first of multiple high-rise buildings that will characterize the Carlsberg City.
The tower is a part of section 8, which is the first part of the Carlsberg City master plan. Section 8 consists of approximately 100.000 m2, where the tower contains 16.000 m2 of apartments and classrooms.
We met civil engineer Daniel Halberg, from Ramboll DK, for a short interview about calculation tools and procedures on big scale projects.
" At Ramboll we have a range of Finite element software. It is decided that buildings mainly consisting of concrete structures must be calculated with StruSoft FEM-Design. It is easy to control the geometrical conditions, like the connections between plates and wall, making the structural system behave similar to the real structure. This is crucial for all prefabricated structures. Furthermore, the mest-generator is of high quality, and it is important that we are able to design plates using cracked section analysis."
FEM-Design is used to determine the load transfer from columns and walls for the Carlsberg tower. 46 combinations were defined and the obtained results were used for further detailing. To achieve a good estimation of the underground behavior, nonlinear calculations were used. Due to the 46 load combinations, this iteration method represents a challenge for regular computers. Thus, Ramboll uses a powerful computer that has been bought for the purpose of calculating large models.
We asked Daniel about the extent to which Ramboll used FEM-Design results for this project.
"Well, for the combinations that apply to the serviceability limit state, we have made estimations of the global displacement and frequencies. The frequency shapes and masses extracted from the FEM-Design model have formed the basis for the estimation of the dynamic comfort."
Ramboll DK has also used StruSoft FEM-Design to calculate the stabilizing walls for other structures in the Carlsberg City.
Besides Carlsberg City, Ramboll DK has also used FEM-Design for other projects, like the Hotel and Conference Center Malmö Live and the New Niels Bohr building containing 45.000 m2 of research facilities.