430 Ventilation systems, cooling, ceilings DIN18379
General description for all trades
The German Pension Insurance Baden-Württemberg plans to fundamentally renovate the extension of the Karlsruhe headquarters, which was built in 1977.
The building is designed as a fully air-conditioned open-plan office building with two basement levels, three full floors (EC 2nd floor) and a saddle floor. The building has a GFA of approx. 18,370 m² and a BRI of approx. 72,240 m².
The extension is designed as a reinforced concrete skeleton construction and has an aluminium glass façade in front, all-round escape balconies with an aluminium steel structure in front and two massive reinforced concrete escape stairwells on the east and west sides. Floors in the open-plan area are designed as coffered concrete ceilings in the core area as solid concrete ceilings.
The 3rd floor, which was built in 1995, consists of a lightweight, set-back steel construction with aluminum-glass cladding, the interior walls are mostly made of plasterboard support walls. As part of the measure, it is planned to dismantle the 3rd floor.
Description for the trade - ventilation systems, KG 430:
The tendered services include the production, delivery and assembly of:
-Dismantling and proper disposal of existing air handling systems. The following air handling systems are disposed of:
•RLT office west, size L/W/H approx. 21/4.8/3.2 m
•RLT office east, size L/W/H approx. 21/4.8/3.2 m
•RLT window blower 1, size L/W/H approx. 10/2.9/3.0 m
•RLT machine room, size L/W/H approx. 15/4.0/3.0 m
•RLT EDP, size L/W/H approx. 15/1.5/2.0 m
•RLT window blower 2, size L/W/H approx. 7.0/1.1/2.0 m
•RLT control room, size L/W/H approx. 4.8/0.9/2.0 m
-Disassembly and proper disposal of existing ventilation ducts, including insulation and various installation parts.
-Delivery and installation of three ventilation towers with the following sizes:
•2x exhaust air d=1.5 H=3.5 m
•1x outside air d=2.2 H=7.0 m
-Installation of four new air handling systems (two on the 3rd floor with 5,000 m³/h each and two on the 1st floor with 25,000 m³/h and 35,000 m³/h).
-Installation of ventilation ducts approx. 5,000 m².