84
Site:
BASIC INFORMATION-
Site formation & excavation
roughly 30 acres including Quarters
= 20 sq. mile.
May 58 to March 59. Foundation & Basement: August 59 to Jan. 61 (17 months) (10 months).
Time to complete Building (Superstructural): Since June 1961.
Floor area:
Size:
Corridor & stairs
Concrete used:
Piles
Lifts:
Windows:
Doors:
Sanitary fittings:
Electrical:
Service pipes:
Sea water:
Drawings:
980.760 sq. ft. = 14 international
size football pitches.
Comparison:
Union House
H.K. Hilton
650.000 (2/3) 609,000 (2/3)
C.G.O. (both wings) 436.855 (1/2)
665 ft. overall East to
Length
West Height
166 ft. above ground to
top of towers Floors
14 main floor levels including basement
approx. 4 miles.
21 million cu.ft. Reinforcement =
4.500 tons.
No of piles to support the building
1.576
14 and 5 dumbwaiters.
approx. 2.500 units; area = 3 acres or 60 tennis courts.
4.500
total 4.500 nos
Ironmongery for doors
= over
33.000 items; of over 130 kinds. Over 2200 items (counting bath or
basin as one item).
Baths linked up end to end = 14 times the length of hospital build- ing.
Conduit
100 miles or 3 rounds
of H.K. Island Wires
325 miles or 10 rounds
of H.K. Island Underground Cables
5 miles.
30 miles. including drainage and
other services.
over 1 miles from harbour pump
house.
Architectural 1.005 sheets Structural
903 sheets including
bar bending
schedule.
Other services 596 sheets
Total:
2.504 sheets
Sub-structure
This includes the basement under the full width of the high rise section. and the relative lower ground floor slab. This was to facilitate the later installation of services which had not been fully designed at that stage. Any spare space will be used for bulk reserve stores. The substruc- ture was constructed as a separate contract immediately following the completion of piling works. Sub-soil drains were provided undernearth and across the basement in a down- hill direction and the basement slabs were all trimmed with bituminous compound. As the highest water table was at least seven feet below the basement it was not considered necessary to do any special water- proof tanking and the existing measures have proved to be very successful in the last few rainy
seasons.
Superstructure
This consists of a reinforced con- crete framework of column and beam construction interconnected with cross walls. The latter are designed to resist all the wind stresses im.
posed on the structure. This was further justified by the provision of a stiff horizontal floor diaphram. This assumption has provided slen- der column sizes and flush ceilings over all upper floors by means of ribbed hollow pot floor slabs and has enabled more flexible planning to be achieved.
The lower three floors have exposed beams and solid con crete floor slabs.
Maximum wind pressures of 50 lbs per square foot acting horizontally against the face of the building were assured for design calculations in accordance with the local code of practice regarding wind effect. The whole building was structurally sub- divided into a number of sections and wings by means of expansion joints. The maximum length of these sections was limited to 120 ft. to avoid excessive expansion and con- traction.
Miscellaneous Structures
The footbridge from the pathology department to the animal house has been designed as
a composite slim and light structure in structural steel and reinformed concrete.
THE HONG KONG & FAR EAST BUILDER — VOLUME 18, NUMBER 5
Page 90Page 91
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