COBIAX | InterCity Hotel
2020

InterCity Hotel

A pentagonal challenge with 15 storeys

Project countryGermany

Project locationHannover

Builder bauwo

Architect Böge Lindner K2 Architekten

Structural engineerLSM Ingenieure für Tragwerksplanung

Executing companyW. Markgraf

The IntercityHotel in Hannover-Ost is a very special hotel: The layout is pentagonal; there is only one right angle. That is a challenge in itself; but the greater challenge was the desire for different use concepts on the various floors. If possible, in order to achieve the highest possible level of variability, columns, which would have limited the room division, needed to be avoided.

The plan for the IntercityHotel was to put a reception area and a bar on the ground floor, a restaurant on the first floor and conference rooms on the second floor; only hotel rooms were required from the fourth floor up, and the floor plans needed to be identical. Therefore, it was possible to use supporting columns for the upper floors, but on the lower floors, they would have been a bother.

Thanks to Cobiax, floor areas of 8 m could be spanned, using a one-field construction method. (In other cases, the technology even enables span widths of up to 20 m.) The storeys can be used variably, and even on the lower floors, there are no supporting columns that limit the possibilities.

Less weight

More utilisation options

Besides the desired variability in the utilization options for the various floors, weight factors were decisive for the choice of the Cobiax voided flat plate slab systems: Had solid concrete slabs been used, considerably more columns would have been required for the drilled pile foundations.

The Cobiax slabs are so light, that ten of the 18 m bored piles were unnecessary – thanks to the voided slab technology, a weight reduction of around 15,000 kN was achieved for the entire building.

Built intelligently

The environment profits

The economic and aesthetic reasons for the use of Cobiax are compelling; but the accompanying aspects are also very pleasing: the depth of the slabs was reduced to 30 cm (compared to the usual 32 cm) and due to the reduced concrete requirements (- 403 m3), around 85 tons less CO2 was emitted.


Images: © bauwo Grundstücksgesellschaft mbH

Product line used

Cobiax SL

The modular product line for international use, thanks to the half-shell technology. This line of products enables effective transport and easy assembly.

Learn more.

More Projects

2024

MTW at Ulm University

Ulm

In a new research building costing 73 million Euros and with 5000 m2 of floor space, researchers from medicine and the natural sciences will be able to pool their expertise from 2024 onwards.

Learn more.
2024

Elementary School Senftenauerstraße

Munich

A modern elementary school for students from six grades is being built with sustainable Cobiax void former technology.

Learn more.
2024

Striking building in Athens city center

Athens

Eight-storey residential building with a wide range of retail on ground floor.

Learn more.
2024

Hertipark

Brunnen

A service and logistics building is being constructed on the former industrial site as a modern superstructure with a wide range of possible uses.

Learn more.
2023

Heidelberg University Auditorium

Heidelberg

In the heart of the campus, open on all sides and built sustainably with Cobiax.

Learn more.
2023

Administration building for the German Bundestag

Berlin

A Bundestag administration building is being built in Berlin. A lot of glass requires little weight. Cobiax was the logical choice.

Learn more.
2023

ProSiebenSat.1 New Campus

Unterföhring

Sustainability at its best: LEED certification in gold

Learn more.
2023

New headquarters of Raiffeisenbank

Savosa

State-of-the-art sustainability criteria through Minergie-Eco certification.

Learn more.
2023

Tbilisi Medical Center

Tbilisi

The multifunctional center is a large complex project and includes, in addition to the hospital building, an exhibition hall, a library and a café.

Learn more.
2023

Apartment buildings with underground parking

Esslingen

Another perfect match of architecture and Cobiax: the characteristic wide cantilevered balconies could only be efficiently implemented thanks to the weight reduction provided by the Cobiax void formers.

Learn more.
2023

Exhibition Hall 5

Frankfurt am Main

Conference services remarkably improved – in a metal dress

Learn more.
2023

Hafenpark Quartier South

Frankfurt am Main

Directly on the Main River, next to the new headquarters of the European Central Bank, the “Hafenpark Quartier” is being developed in Frankfurt’s Eastend district. Cobiax is being used to build the towers, which will contain several hundred apartments.

Learn more.

News

All the news from the world of construction
Wider Scopes as an obligation
Cobiax is more than just a brand. The catch phrase “Wider Scopes” extends far beyond the possibilities for modern slab technology. It is a commitment to providing more room for play for people, in the scopes and spaces in which they live and work.
Learn more

Newsletter

Never miss out on any news again. Click on the button below to register for our newsletter.

Cobiax Newsletter.

Become a part of something bigger?

Career and development at the innovation champion.

Vacancies