178
X3
Category 3: Industrial Buildings and Plants
Production Hall 090b - České Budejovice, Czech Republic
Bj090b is a continuation of the existing factory building
Bj090a at the company R. Bosch spol. s.r.o.
The new factory building with the ground plan
parameters of 5 x 12 + 13.5 + 12 = 85.5 m / 5 x 12 =
60 m is based on the large-diameter piles heads and
cups for the restraint of concrete columns.
The building consists of 2 three-storey annexes which
formed the western and eastern facade and of single-
storey shop between them, which has a penthouse for
the machine room in the middle module. The first floor
with level +/-0.000 consists of the production shop and
warehouse handling. The second and third floors of the
annexes on levels +5.250 and +10.500 with the utility
load of 4.5 kN/m
2
are areas of social and administrative
facilities building. The total height of the outbuilding is
+14.87 m. The production shop has the height of 9.6 m
to the upper level of girders. The machine room floor in
the centre of the shop, a 12 m ship located at +9.750
with a useful load of 7.5 kN/m
2
, has a steel structure
covered by the metallic roof and facade. The internal
prefabricated staircase is located at the eastern facade.
Two outside prefabricated stairs, located at the western
façade, leave the outer contour of the building.
The prefabricated concrete structure consists of:
• Prefabricated columns
• Prefabricated girders of the machine room under the
roof superstructure
• Prefabricated beams of the machine room under the
roof superstructure
• Precast roof girders of the shop
• The prefabricated ceiling- and roof beams of the
annexes
• Circumferential bracing of both annexes
• Ceiling panels (Spiroll), thickness 320 mm
• Wall panels of staircases
• An intermediate landing platforms and
• Staircase shoulders
• Roof panels of the outside staircases
• Roof trims of the staircases
• Reinforcing membrane of ceilings and roofs on the
panels (Spiroll)
The steel structure creates of the following parts of the
building:
• The roof superstructure machine room +9.750
• Roof purlins of the shop including supporting
structure of skylights
• The steel staircase in the eastern annex
• Gable columns in the façade - row 40
• Supporting roof sheets of the shop and of the
penthouse/superstructure machine room
• Special profiled roof sheets for the watering concrete
floor slabs of the machine room
• The north shelter suspended from the concrete
facade columns
• Internal columns of annexes
• Lining trapezoidal sheets
Based on experience with similar big-box structures,
we resolved the problem of cladding shear deformation,
which occurred due to long-term deformation of
concrete structures. We came to the solution that
consists of an indirect anchorage facade profiled
on concrete columns through auxiliary C profiles of
bent sheet metal. Thus, we have eliminated solid
connections of the facade to the supporting concrete
structure and thereby prevented unwanted deformation
of the facade.
Inside the building we also implemented a structure for
the design of the future building clean room.
The supporting structure consists of steel frames in the
transverse axial distances of 3 m. The outer steel frames
have the axial distance of 2.42 m. The overall external
dimensions of the structure are 38 x 9.8 x 4.24 m. The
joints of the structure of the area are welded in order
to maintain cleanliness in the area. The frame corners
are designed to be welded with tapered columns and
mullions. Other connections have been designed
using hidden welded brackets, which will be fitted with
supporting elements. The structural elements of the
hidden brackets will be welded to the bottom flange
for attachment on the bracket. In order to facilitate the
assembly of steel frame mounting, frame joints are
designed. Mounting connections are positioned with
regard to the bending moment diagram at the zero
bending moment.
Software: Allplan Engineering, Scia Engineer
