As part of the "New Plant Cottbus" project, DB Fahrzeuginstandhaltung GmbH is planning the construction of a new maintenance depot for the heavy maintenance of electric multiple units on the site of the existing Cottbus plant.
Classified as part of the overall "New Plant Cottbus" project, the existing plant will in future be located between two new maintenance halls to be built, including their necessary peripheral buildings. In the south and southwest, Hall 1 and a warehouse will be built, and in the east, the existing maintenance hall will be bordered by the building known as Hall 2.
This technical tender document specifies the requirements for the procurement of a continuous roof-mounted work platform (DAB) for the commissioning track (IBS track), from planning to final acceptance, at the "New Plant Cottbus" in 2026.
The approx. 441 m long DAB is to be erected in Hall 1, in the local building section (GT) 1 on track 120. It is suspended from the roof structure, accessible on both sides and extends over both work stands, which can be used both separately and together. Figure 1 illustrates the track layout in Halle.
The tried-and-tested handover of the roof work platforms to be procured to the company is planned for 28.10.2026.
1.3.1 Dacharbeitsbühne
The scope of delivery includes a non-height-adjustable, double-sided accessible roof work platform, in modular design with the following equipment:
▪ Modullänge ca. 7 m
▪ Total length approx. 441 m, can be divided into two working stages
▪ Height 3.85 m above the top of the rail
▪ segmented extensions for gap bridging on the vehicle, extension approx. 700 mm
▪ Front fall protection over the entire length of the DAB
▪ rear railing with access doors and security fences
▪ Face fall protection as a safety device at the ends of the vehicle when working on the roof
▪ Suspended construction of the roof structure incl. necessary beams
▪ Profile rail system and mounting elements for warping the cables for the TGA equipment and lighting system on or below the DAB
▪ Substructure for fastening the ceiling conductor rail (overhead line)
▪ Dividing gates on the DAB to divide and secure the two work statuses against the dangers from the overhead line
▪ Barrier test cages (IBS fences and gates)
▪ Control and safety technology
▪ Network connection for integration of the system into a higher-level plant control system
1.3.2 Access stairs and emergency descents Roof work platform
The scope of delivery includes eight access stairs to the roof work platform, 4 per work stand. The access stairs are located on the southern side of the DAB, the main working side. Opposite the access stairs, there are an equal number of emergency descents on the northern DAB side, the fall protection side (Absi side). These are supplemented by a total of four additional emergency descents on both sides at the ends of the DAB to ensure the length of the escape route.
1.3.3 Boarding gondolas below the roof work platform
Below the DAB level, eight movable entry gondolas are suspended on both sides. These are intended to allow access to the vehicle from the -0.95 m level.
1.3.4 Energy and media supply
The complete energy and media supply for the operation of the roof work platforms is to be supplied, installed and put into operation by the contractor from the on-site interface (see 1.4). Any necessary (electrical) sub-distributions are also included in the scope of delivery. In addition, any necessary data distributors, such as switches, must be provided, delivered and installed by the contractor.
1.3.5 Continuous girder as crane runway
The contractor's delivery services also include the planning, manufacture, delivery and installation of the crane runway over the entire length of the hall, including the associated discharge points.
1.3.6 IBS fence and gates
The scope of delivery of the roof work platform also includes the fences and gates for separating the work stands in the test operation (test cage).
The detailed mechanical requirements can be found in the technical tender documents.