Frankfurt Operatower, Germany

REINFORCING COUPLING SYSTEMS

Project:    
Scyscraper Operatower in Frankfurt, Germany

Client:     
Opernplatz Property Holdings GmbH & Co. KG

Construction period:    
January 2007 - December 2009

Main contractor:
Ed. Züblin AG

Owner:
Tishman Speyer 

Scope of supply:
320 tons thread bars SAS 670/800 Ø 30 - 75 mm,
3,700 pcs. contact couplers

Application:    
The high-strength thread bars SAS 670/800 and contact couplers are used for reinforcing the columns of a high-rise building (total height of the building ~170 m) in Germany for the first time. The total longitudinal  reinforcement of the high load capacity and edge columns is designed with the high-strength thread bars SAS 670/800. The ratio of reinforcement is up to 13 %. This high ratio of reinforcement at no congestion of steel in the columns is possible due to the rebar diameter of up to 75 mm. Mechanical splices of SAS thread bars by contact couplers allow the transferring of high compressive forces.