Residential building

In a recent study by Bauforum Stahl (Düsseldorf) for a residential building in an urban environment, two complete design variants were developed (House 1 and House 2 - see figure). The designs also cover structural and installation technology aspects. You can download the PDF of the full study report (January 2011) in downloads.

Elevation		Plan

Concept developed for residential building in the German study.

Structural concepts
Three stability systems were designed and have been calculated (see the figures below). Each stability system has two variants:

• Variant 1: the small core in the middle of the building, which contains the lift shaft, is a part of the stability system;
• Variant 2: the small core in the middle of the building does not contribute to stability.

Core

Wind bracing

Framework

Stability systems and their variants are compared with respect to steel use in the structure. This applies to the three stability systems and two variants. The amount of steel used in the frame without a central lift shaft is set at 100%. This table provides a comparison:

Comparison of German with Dutch design assumptions and boundary conditions
The loadings used in the Netherlands, as given in the Eurocode and the Dutch National Annex are different from those used in Germany. The table below shows that the loadings in the Netherlands do roughly correspond to those used by Germany. Therefore, the same conclusions can be drawn for the stability systems.