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References

NEW CONSTRUCTION OF DIGESTION TOWER 1+2 WASTEWATER TREATMENT PLANT HANNOVER HERRENHAUSEN

References

NEW CONSTRUCTION OF DIGESTION TOWER 1+2 WASTEWATER TREATMENT PLANT HANNOVER HERRENHAUSEN

Client

Hanover Urban Drainage

Contact person

Dipl.-Ing. Stefan Wessels

Start of construction

03/2020

Construction time

2 years

A building under construction with two large, oval-shaped concrete structures in front. Scaffolding and a crane surround the site. A sign in German reads Anton Meyer Bauunternehmen.
A circular wooden structure under construction, with radial beams and yellow and orange panels, viewed from above. Trees and rooftops are visible in the background under a clear sky.
Construction workers in safety gear work at night on a circular structure with yellow insulation and scaffolding, illuminated by bright lights; a large dome-shaped building is in the background.
A building under construction with two large, oval-shaped concrete structures in front. Scaffolding and a crane surround the site. A sign in German reads Anton Meyer Bauunternehmen.

Scope of services

New construction of digestion tower 1+2 sewage treatment plant Hannover Herrenhausen as well as a floor slab and a stair tower in in-situ concrete construction.

Shell construction contractor for formwork and concreting work as well as the laying of reinforcement and the assembly of stainless steel (material 1.4571) installation parts

A circular wooden structure under construction, with radial beams and yellow and orange panels, viewed from above. Trees and rooftops are visible in the background under a clear sky.

Work carried out:

The floor slab has an area of approx. 1,600 m² and a thickness of 1.65 m and was produced in one piece within 20 hours with a volume of approx. 2,500 m³. 490 tons of reinforcing steel, mainly reinforcing steel with a diameter of 32 and 40 mm, were used in the floor slab.

The digestion towers were erected on a cylindrical base (approx. 500 m² formwork area) with an egg-shaped digester formwork (approx. 3,700 m² formwork area). Approx. 2,300 m³ of concrete, approx. 350 tons of reinforcing steel and approx. 40 tons of prestressing steel were used for each tank.

The stair tower has a height of approx. 44 m with 560 m³ of concrete, 50 tons of reinforcing steel and a formwork area of approx. 3,300 m². It was built using the sliding construction method with prefabricated stairs and in-situ concrete landings.

All references