The science city of Darmstadt intends to replace the main building that was built in the 1970s and its extension with a replacement new building, as the two buildings can no longer meet the needs of the current educational concepts. The space required for this new building has a program area of approximately 3,000 m².

The existing specialist class wing was built in the 2000s and will continue to exist in order to support the school in the field of natural sciences. As before, the existing building will be connected to the future new building via the two-storey, glazed connecting part.

On an area of more than 6,000 square meters on three floors and basement, classrooms and specialist rooms, service rooms, corridors and sanitary areas are to be created for around 650 pupils as well as their teachers and pedagogical leaders.

Object of performance:

410 Sewer, water and gas plants

The new building of the Bertolt-Brecht-Schule is to be a modern, innovative, energy-optimized building. For technically flawless and safe operation, it is imperative to equip the building with state-of-the-art drinking water and wastewater technology systems (sanitary technology).

411 sewage systems

The resulting waste water is brought together as a separation system in the building and led to the outside. Since the building does not have a complete basement, the waste water pipes initially run under the floor slab of the ground floor to the outer edge of the transfer shaft. The collected waste water is led around the building to the southern sewage shaft P34896 and discharged into the sewer there.

The drainage objects from the ground floor to the 2nd floor are above the backflow level, so that a lifting system is no longer necessary.

The wastewater in the basement is collected via two lifting stations to the north and south and discharged into the wastewater pipe above the backwater level. Two more lifting stations to the north and south are used for the drainage of light wells in order to direct the rainwater into the already laid rainwater pipe.

The toilet cores in the southern part of the building lie on top of each other and are integrated into the ground pipe via vertical downpipes.

All downpipes receive an inspection opening before the transition to the ground line or directly at the transition of the downline into a horizontal line.

The waste water generated by the cafeteria does not require any extra treatment.

412 Water systems – Drinking water supply cold – Automatic flushing of the distribution line

In order to ensure that the maximum permissible temperature (25°C) in the distribution pipe of the drinking water system (cold) per floor is exceeded, an automatic flushing of the distribution line is provided.

The water systems are planned in such a way that a flow through the pipes is ensured even when the individual objects are not in use. Spur lines to individual consumers are not permitted. the floors are supplied by a riser. The floors are distributed horizontally.

water purification

A softening system and a pressure booster system are provided.

Hot drinking water supply

Because of the risk of legionella formation, instantaneous water heaters are preferred.

Delivery and installation of sanitary facilities