Max Frank

Cantilever slab connections for prestigious office complex

Directly adjacent to the “Ohligsmühle” stop of the aerial tramway in the German city of Wuppertal, a prestigious office building with a gross floor space of approx. 18,000 m² was erected. The five-to six-story-high building consists of staggered wings. The three-dimensional architectural precast elements and the floor-to-ceiling windows characterize the modern look of the building.

Profiled architectural ­concrete façade with loadbearing function

The new-build office and administration building presented the designers with special challenges. The complex construction of the profiled architectural concrete façade of precast posts and beams assumed in this case a loadbearing function, eliminating the need for edge columns in the interior of the building and enlarging in this way the usable floor space, as well as adding more flexibility for the space concept.

The structural system of the construction turned the focus on the thermal protection as well. Since here no cantilevered structural member, as, for example, a balcony, is thermally separated from the living space of the building, the floor had in this case to be decoupled from the façade. This could be satisfactorily implemented with the Egcobox cantilever slab connection from Frank.

1,200 special elements with all-around fire protection

The complexity of the construction of the façade presented a considerable challenge to all parties involved in planning, design and construction. Floor slab and façade were connected only at specific points of intersection on the post-and-beam system, placing highly diverse requirements on the Egcobox. The special geometry, the particular arrangement of the reinforcement and the connection points of the posts and beams provided by the client demanded a high measure of precision in the design and construction of the Egcobox elements and intensive collaboration between Frank’s application engineers and the structural engineer.

The more than 1,200 Egcobox special elements with an insulation joint width of 120 mm and an all-around fire protection were moreover labelled/allocated to the respective construction elements to prevent mix-ups during installation in the precast plant and to facilitate the production flow.


Related articles:

Issue 04/2018 Dyckerhoff

Prestigious façade for Volksbank Krefeld

The new building of Volksbank Krefeld, occupying a prominent urban location on Dionysiusplatz in the city center of Krefeld, appears welcoming and prestigious simultaneously. The showpiece of the...

Issue 07/2017 BWE/Hebau

Prestigious façades made of architectural concrete

A seven-story new building with a gross floor space of 35,700 m² has recently been erected by company Zechbau, NL Berlin, at Otto-Suhr-Allee in Berlin-Charlottenburg by order of Art Invest Real...

Issue 12/2022

Rock façade made of precast elements for the administration building of Zuber-Beton

In Crailsheim in Germany, the company Zuber Beton GmbH has moved into a new administration building. The architectural façade is designed to reflect the possibilities of the precasting plant and its...


Precast concrete construction makes it possible – fast building success in Tuttlingen

A large residential and commercial building, completed a few months ago, now stands on the Aesculap-Platz in Tuttlingen, Germany. For the floors and walls, the builder had chosen precast elements from...

Issue 02/2018 Wood-textile concrete composite systems

Large-dimensioned and precast façade elements

In recent years, so-called textile concretes have been used as façade elements. Stitched textile fabrics – for the most part manufactured from alkali-resistant glass fibers, carbon fibers, or amid...