Germany - Construction services in building construction

Description

Refurbishment and extension of Schillerschule Mannheim to an all-day schoolLage: corner of Germaniastraße and LuisenstraßeBuilding description: 5-storey main building (60s) and 3 3-storey extensions for classrooms, structurally separated and divided by 3 staircases into the houses (H) 1, 2 and 3. An administration wing (60s) is connected to the ground floor via the two-storey hall, technical and storage rooms are in the basement. Fire protection (II. escape route) and accessibility (lift) make corridors between H 1-3 necessary on all floors. The measures are carried out in 2 temporally separated construction phases (BA). BA 1 includes H 2 and H 3 over all floors. The BA 2 comprises H 1, hall, administration wing and the directly connected new cafeteria with kitchen on the ground floor as well as its ventilation centre in the basement. Important notes: The school will remain in operation as a two-furrow primary school during the construction measures, during BA 1 in H 1, and after its completion move to H 2 and H 3. A fire protection concept is in place and must be fully complied with. Core removal (wall and ceiling claddings, screed, coverings) and demolition of non-load-bearing walls (WC facilities) are carried out on site. Description Building parts of the 1960s: The 5-storey main building consists of StB ribbed ceilings (also roof ceiling) and StB walls as well as StB staircases. The administration wing and hall consist of ribbed and flat ceilings, StB walls and HEB steel columns (north facade). In the teachers' room a narrow gallery level, approx. 20o inclined StB-roof ceiling. Demolition and new construction measures Main structure on south and north façade Dismantling of windows (aluminium-glass elements) and non-load-bearing parapet structures made of storey-high steel profiles (H approx. 3.80 m) and concreted parapet sections (BRH south approx. 0.90 m, north approx. 2.10 m), exposure of the existing ceiling face. Load-bearing prefabricated StB elements as new parapet elements, in each case to be installed field by field in connection with the construction of the wall openings and to be connected to the existing ceiling, L approx. 8.75 m, H approx. 1.40 m. Corridors: Making wall openings in all 5 floors according to the specifications of structural design. In the edge area in a width of approx. 0.50 m around the breakthrough, the reinforcement must be exposed and integrated into the new StB construction. Light passage new StB construction H x W = approx. 2.10 m x 2.26 m, as well as individual wall openings above this opening for TGA pipes. Per floor 6 single walls d approx. 25 cm and 2 double walls d approx. 2 x 25 cm. In the DG on site enclosure for ventilation technology. Demolition and new building measures Administrative wing Constructive demolition of the middle section of the ground floor and new canteen with saddle roof (H eaves approx. 5.65 m, ridge approx. 10.15 m above ground level) and kitchen (flat roof area Germaniastraße). UG (RLT central office) as force-locking extension to existing building, in the ground floor partly overbuilding existing building, partly over new ventilation central office, StB ceiling over UG and outside walls as StB walls. A technical floor, StB-ceiling, approx. 18o inclined StB-ceiling will be built above the food counter. The roof construction of the Mensa is carried out by the customer. In hall 4 new supports incl. foundation for load transfer in the area of ramp / gallery. Note: Interior view surfaces of the new StB constructions of both components (exception UG RLT headquarters) fair-faced concrete requirement SB2. EarthworksAll exterior wall surfaces of the existing building in contact with the ground are exposed, working space sufficient for facade scaffolding on site. Parts of the existing underground lines must be uncovered and replaced. Surfaces in contact with the ground receive sealing and perimeter insulation. Foundation flat foundation with solid StB-bottom plate incl. thermal insulation under consideration of the specifications from soil reports. The higher level of establishment of the portfolio must be taken into account. Internal walls, shafts Load-bearing wall constructions StB, force-fit connected with existing ceilings. One shaft side is closed with KS-MW after TGA assembly. Portal side elevator shaft with exposed concrete requirement SB2.

Opportunity closing date

13 November 2019

Value of contract

to be confirmed