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Author and Designer: Prof. Milorad
Pantovic, BSc (arch.)
Structure Designers: Academician Milan
Zezelj, BSc (arch.), Milan Krstic, BSc (civil eng.) GP "Rad"
Installation Designers: "Janko Lisjak" and "Svetlost"
Designed by: Faculty of Architecture and Designing Bureau GP
"Rad"
Employer: Ministry of Construction Industry
Contractor: GP "Rad", KMG "Trudbenik", 1995
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AT THE BELGRADE FAIR site GP "Rad" used an original
system of prestressing. The Hall II was covered by two double
curved shells which are a spherical sector above the square
base with sides 48 m, with the radius of only 56 m. The shell
thickness was gradually increased from 9 to 20 cm. Hall III
was covered with a roof, and double curved shells (whose shape was
defined by a sphere dia 100 m) were cut by two vertical planes
at the distance of 48 m. The length of the bigger shell axis is 70
m and thickness from 9 to 20 cm.
§
Hall XIV of the Belgrade Fair is of rectangular base
112.0 x 72.0 m with the roof 120 x 80 m, with the cellar,
groundfloor and galleries of the total area 24,000
m2 The roof
rests on six cylindrical columns dia 5 m which serve as installation
ducts so that the actual span is 40 m each,
and the overhang 16 m each. The basic support beams which were cast in-situ go
over the column line. The roof is supported by the columns over
6 neoprene-teflone bolsters with restricted movement in all
directions. The structure weight together with roof decking and
installations is 3,200 t. The lifting height of the roof was 11 m.
The system flexions were about 5 cm.
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