Excavation, raft foundations and reinforced concrete work up to ground floor level: Union Construction Co. (Shanghai). Supply and erection of Structural Steelwork; Redpath Brown & Co. Ltd.
General building work and finish- ings: Soh Beng Tee & Co. Electrical installation: R.E. Morris
& Co. Ltd.
Sanitary installation &
water
supply: Watts & Baker Ltd. Air-conditioning installation
(York): Sime Darby (Singa- pore) Ltd.
Passenger lifts, service lift, food hoist & booklifts (Schindler): Harrisons Lister Engineering
Ltd.
Aluminium windows and vertical
& horizontal sunbreakers (Wil liams & Williams); Guthrie & Co. Ltd.
Emergency generator (Rolls Royce): Harrisons Lister En- gineering Ltd.
Aluminium waste paper disposal
chute: Diethelm & Co. Ltd. Carpeting and curtaining: Robin-
son & Co. Ltd.
Marble work (Raoul Bigazzi): A. Clouet & Co. (Singapore) Ltd. Plastic signs. notices & directory
boards: Alliance Plastics. Glass, ceramic and mosaic tiling:
Dobb & Co. Ltd.
Thermosol glass: Optorg Co. (M)
Ltd.
Anodised aluminium hardware & ironmongery: A.G. Roberts and Wehag.
Vinyl floor tiling (Semflex): Dunlop Rubber Co. (M) Ltd. Underlay for carpeting (Dunlopil
lo): Dunlop Rubber Co. (M) Ltd.
Paint (Dulux & Pentalite): Imperial Chemical Industries (Export) Ltd. Japanese silk and grass wall
papers: Harrisons & Crosfield (Singapore) Ltd.
Lionide wall finish: Boustead &
Co. Ltd.
Projection screens and sound amplification equipment: H.A. O'Connor Co. Ltd.
Anodised aluminium extrusions:
Metal Mouldings Ltd.
THE HONG KONG & FAR EAST BUILDER
—
Nostex boarding: Harrisons &
Crosfield (Singapore) Ltd. Roller shutters (Kinnear); William
Jacks & Co. (M) Ltd. Mosaic mural panels on staircase
walls: Don Foster, "Tankers" Venetian glass mural
plaque: Cheong Lai Thong. Entrance hall oil painting: Cheong
Soo Pieng.
Furniture: Diethelm & Co. Ltd. Oil fired kitchen equipment:
Mechanical & Combustion Engineering Co. Ltd.
The professional firms or in. dividuals concerned were:
Architects: Swan & Maclaren. Consultants for foundation design: Maurice Nashchen & Partners in association with Mr. J.A. Chippindale.
Consultants for soil investigation:
Soil Mechanics Ltd. and Mala- yan Drillers Ltd.
Consultants for interior decoration:
Fry. Drew & Partners. Quantity surveyors:
Every (F.E.).
Langdon &
Land surveyor: B.F. Brennan.
The contract for the design. supply, fabrication and erection of the structural steel framework for Shell House was awarded to Red- path. Brown & Co., Ltd.. Singapore, in November. 1955 on a competitive tender basis.
The steelwork design, in accord- ance with B.S. 449, 1948. was executed in the Glasgow design office of Redpath Brown and British Standard sections in steel to B.S. 15 were used throughout--universal
beams not then being available. Where single rolled steel joist sections were not capable of carry- ing the loading required, compound sections were built up from R.S.Js with plates rivetted to their flanges. This procedure was followed in the lower lengths of the
the stanchions where loads of up to 750 tons had to be supported and in some of the longer span heavily loaded beams.
The heaviest stanchion section weighed 5 tons and the steel measured 14′′ X 22′′ in cross section. All stanchions were supported on steel bloom bases and the trans- ferrence of bending moments to bases was relieved by the incorpora-
VOLUME 15, NUMBER 2
tion of saddle channels which straddled the bloom bases between holding down bolts. Perimeter stanchions supported the reinforced concrete walls laterally and rein- forced concrete shear keys were introduced at the base of steel stanchions to transfer horizontal forces to the R.C. raft.
Erection was programmed in two phases. Phase I included all steel- work below ground level and Phase 2 the complete steel superstructure above ground floor level. A break between Phases I and 2 was arrang ed to permit the foundations con- tractor to complete concreting of retaining walls. basement and ground floors.
Foundation level for Phase I was a reinforced concrete raft at approx- imately 30 ft. below ground floor level. Working space at the site was restricted and steel erection was further complicated by the presence of strutting girders criss-crossing the excavation at two levels. The setting out of these strutting girders was carefully checked by Redpath Brown engineers to ensure that they did not foul stanchion positions and at places only inches of clearance were available.
In some instances it was unavoid able that these strutting girders should foul steel beam positions and this was accommodated by providing temporary positions for the steel beams
these and re-positioning when the obstruction was removed.
Before erection commenced all stanchion base levels were establish- ed and steel packs permanently grouted at correct levels. These levels were checked and rechecked
per- and building lines were also manently established on the raft.
A 7-ton steam derrick crane with 100 ft. long jib, which had been used by the foundations contractor for removing spoil from the excava- tion was retained in position for the erection of Phase I steelwork and the first stanchion was erected on 4th March, 1958. Erection of Phase I steelwork totalling 330 tons was completed on 11th May, 1958.
Storage space at site was such that only sufficient steelwork for a single day's work could be accom- modated. Owing to the very heavy
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