Beautiful architecture

At Frederiksberggade 2 in Copenhagen the inspiration comes from the Italian architect/engineer Nervi´s work with topology optimised ceilings. About this says Mikkel Søndergaard who are working on the project, “It is a client that makes it possible for us to contribute with creative solutions. It is a unique assignment where we have the possibility to work with spectacular solutions – it is visible artful engineering. We are recreating a flooring structure that visually will draw people’s attention to the shop area on 1st floor.”

Illustration - DesignGroup Architects

The flooring structure which are in-situ ribbed flooring is designed after the movements of the mainstay through the slab. The slab is supported lengthwise by the building’s facade and by one column central in the building. By modelling the slab, the engineers find the optimum number, location and shape of “openings” within a given continua subject to a series of loads and boundary conditions. This helps to find the optimal placement of the ribbed flooring. The slab is expressing how the loads are being carried in the ribbed flooring.

Illustration - DesignGroup Architects

“This method has led to the buildings architectural grip.” Mikkel

Structural Engineer Peter Vejrum ads, “When we are defining the loads and boundary conditions, we find an infinite number of lines which has to be sorted. When all has been sorted, we decide which of the lines that gives the most beautiful flower like pattern. The patterns show the mainstays way through the slab out to the façade and into the main column. In these patterns we place the ribbed flooring with varying heights after the load rate. The design of the ribbed flooring is directly linked to the Revit model.”

Illustration - DesignGroup Architects

A main column is placed central in the building and it supports most of the building. The main column is conducted with branches that supports the suspended ceiling above the ground floor. The visual expression of the column can be compared with a crown of the tree. The suspended ceiling above the ground floor is conducted as a composite slab moulded together with a top plate in concrete.

Illustration - DesignGroup Architects

Structurally there is a large focus on robustness, Mikkel ads, “We have demonstrated all flooring structures to be sure that it is impossible for a progressive collapse to happen if the main column was removed. As we are used to at Søren Jensen we have also supplemented our calculations with hand calculation. We a solid documentation that we trust and that we are using to support our calculation models.”

The project is conducted at Søren Jensen’s Team K, in close collaboration with DesignGroup Architects.