Building description:
Two existing rectangular structures connected to an interim building, extension as an extension to a building wing sh. enclosed site plan or site layout plan
Building dimensions:
Total: approx. 60m x 35m
West wing UG - OG: approx. 45m x 12.5m
East wing UG, ground floor: approx. 26m x 11,5m
Intermediate construction UG, ground floor: approx. 8 m x 5.5 m
Extension building UG, EC: approx. 20 m x 11.5 m
height from approx. 7m to 11m
Expansion construction type:
solid construction made of reinforced concrete, walls, partly exposed concrete,
Exterior and interior walls in concrete
Type of renovation area:
solid construction made of masonry, reinforced concrete in the basement,
stairs in concrete, columns in steel,
exterior and interior walls in masonry, interior walls partly made of GKB
facades:
- fibre-cement cladding, with thermal insulation behind
- mullion/transom facade (wood)
Roof construction:
- Existed: Pitched roofs unchanged, partly flat roof new
- extension building metal roof
Paved open spaces:
asphalt pavement and concrete pavement
Sewage systems:
Dirty water is disposed of within the respective building via newly installed waste water pipes. The existing down pipes will also be replaced for this purpose. The required collection lines are either arranged inside attachment shells or placed via slots in the masonry. The new down pipes to be laid are vented individually via the roof. In accordance with DIN EN 12056 and DIN1986, the wastewater system is constructed from thick-walled PE pipes for drop and collective connection lines. Connecting cables are also made from thick-walled PE pipes. The cables are additionally insulated against transmission of structure-borne noise. Fire protection through walls and ceilings is provided by approved fire penetrations in accordance with MLAR.
No safety measures are required in primary school, as all connections are above the backflow level.
Water systems:
The existing drinking water network currently consists of galvanized steel pipes that no longer meet the hygiene requirements of VDI 6023. For this reason, the drinking water supply is being rebuilt. All drinking water pipes are made of stainless steel and are insulated against unintentional heating.
The entire network is ground through using flow dividers using the venturi flow principle according to VDI6023 “Hygiene in drinking water installations” and regularly flushed at the last outlet using automatic flushing stations.
Consequently, stagnation of the drinking water installation is ruled out even during holiday periods. Depending on the building, hot water is heated via electric instantaneous water heaters or via drinking water stations in the technical sector.
Sampling valves are provided at relevant points for the required regular sampling of drinking water quality.
The number and location of sanitary objects is based on the architectural plan.
The primary school's drinking water supply is divided into three individually shut-off units. The following manifold layout is planned for this purpose:
Main supply line connection. DN40
Building North: DN25
Building North sanitary cells: DN32
Building south: DN20
In principle, all sanitary ware is only supplied with cold water. The following areas receive hot water heating in the form of an under-table instantaneous water heater:
Toilet cores: 6.5 kW
Disabled toilet: 3.5 kW
Kitchenette: 3.5 kW
Kitchen: 6.5 kW
An open small storage tank with integrated mixer tap is provided for the draining sinks in the janitor's workshop and the cleaning room. With its 15L capacity, this also meets the increased hot water requirement for building cleaning. Nevertheless, the small storage tank only requires a low electrical connection load of 2.2 kW.
In addition, the special feature of elementary school is that a plaster trap is provided in the workshop. This is intended to catch deposits and thus protect the drainage network from sedimentation residues: