e-mosty December 2018 e-mosty December 2018 | Page 28

MUNA BULK STORAGE RESERVOIR, SAUDI ARABIA
(1986)
CAIRO STADIUM ROOF, EGYPT (1991).
120m diameter and 60m diameter tension cable
roofs. Using conventional prestressing strand with
straight cables to define a cable net allowed
inexperienced contractors to build a complex
structure in record time, for the African Games. Main
hall seats over 20,000 people. Concept to completion
for the whole stadium including 4 cable net roofs was
in under 18 months.
Cable stayed shell roof 340m diameter. One of the
largest concrete shell roofs in the world. The clear
span of 210m and the overall diameter are larger than
the Millennium Dome in the UK, and the concrete
material gives long life and minimal maintenance in a
very harsh environment.
Figure ↑ 69: Concrete roof in its mountainous desert bowl.
The picture was taken more than 5 years after
completions and shows the exeptional durability
even without maintenance.
Figures 70 ↗ and 71 →: Interior and exterior views of the cable-
net domes. Multi-layers of cables separated by
circumferential trusses give a robust three-
dimensional cable dome.
SELECTED OTHER STRUCTURES:
Car park at the Prophet’s Mosque, Medina, Saudi Arabia
(1992). A multi-level underground car park with 3,000
spaces and 70m spans. Utilising bridge engineering
techniques and construction methodology to construct one
of the largest car parks in a very sensitive site enclosing the
Mosque on three sides.
Second Narmada Bridge, India (1997). A 1.3 km long river
crossing with 95m spans. The first BOT bridge in India.
Design of temporary works including the launching girder.
Indian Institute of Bridge Engineers: Winner Most
Outstanding Bridge National Awards 2000.
Bridge Across the Straits of Malacca. (1997). Concept
design studies for 1200m and 900m cable stayed bridges.
Approaches 350m cable stayed bridges constructed on
shore and floated into position.
Limbang Bridge, Malaysia (1994). 100m span composite
box girder with unique erection method for river crossing in
rainforest area.
Yangtze River Bridge, China (1993). Preliminary Engineering
Design for a cable stayed bridge 1100m main span for BOT
project. Work also included traffic surveys and traffic and
financial forecasting.
Pyramidal Tension cable roof, Saudi Arabia (1985). Modules
of 44m x 75m to from roof 352m x 150m as a cover to a
potable water reservoir. Prestress strand cables support
prestressed beams up to 150m long and transverse
reinforced beams. Low maintenance aluminium cladding
attached directly to the cables.
Niger Bridge at Ajaokuta, Nigeria (1985). Twin deck 3km
long river crossing with 80m spans in river with high scour.
Longest bridge in Africa on completion.
Long Span Cable Structure. Concept for 1-2km main span;
Submission for the competition ‘The Bridge Image’
sponsored by the New Civil Engineer.
4/2018