Extracted from text ... CIVIL ENGINEERING ? JULY 2005 3
WHY IS IT THAT ENGINEERS allow others
to take the credit for their achievements and
remain stoically silent when this happens?
Does this not lie at the very heart of our lack of
recognition? Who remembers the epic efforts
of Ove Arup and his team to realise the fl ights
of fancy of the original architect for the Sydney
Opera House? How many know the name of
the designer of the Nelson Mandela Bridge
in Johannesburg or the many brilliant water
schemes without which the PWV area would
not be the industrial heartland of the country?
Even our professional magazines are often
amiss in giving the credit to those ..
Extracted from text ... SIVIELE INGENIEURSWESE ? JULIE 2005 4
THE ORANGE RIVER PROJECT
By 1960 it was possible to formulate a
comprehensive development plan for the
Orange River, which would provide for
the ultimate requirements of irrigation,
urban water supply, industrial water supply,
hydro- electric power development and fl ood
control. This new concept widened the
emphasis from the single purpose Orange-
Fish-Sundays diversion project to the multipurpose
Orange River development project.
The major effect of this change of emphasis
on the Orange-Fish tunnel was the
choice of the dam site at Ruigtevallei near
Norvalspont, instead of the previously proposed
sites further upstream. It would now
be possible to build a tower in the dam basin
and so tap the ..
Extracted from text ... SIVIELE INGENIEURSWESE ? JULIE 2005 10
THIS IS HOW RENOWNED architect Revel
Fox expressed himself about the profession
he had been practising for 55 years, until his
death in December 2004. He spent a lifetime
developing an architecture appropriate to
the region and trying to solve the unique
needs of South Africa's built environment.
His profound infl uence on architecture and
urban design in the country stems from
a design philosophy that encompassed a
'complete' architecture in which he gave
close attention to all aspects of a project,
through landscaping down to the smallest
details of the interior fi nishes.
What emerges from the observations
and refl ections of his peers, partners and
colleagues is essentially the same. ..
Extracted from text ... SIVIELE INGENIEURSWESE ? JULIE 2005 18 SIVIELE INGENIEURSWESE ? JULIE 2005 18
FRANKI AFRICA HAS AGAIN shown its
ability to produce cost-effective geotechnical
solutions in contracts that require
decisions 'on the move', as it were. This
time it has been for the foundation and
lateral support work at the new Bedfordview
Mall shopping centre, yet another successful
development by Abrosie Brothers in
The development comprises low-rise
residential, high-rise residential, commercial
and shopping as well as an upmarket
hotel. Franki Africa, who has traditionally
done all the geotechnical work for Raymond
and Budwa Abrosie, negotiated this large
and prestigious contract with them.
The site, which was originally part of
the Geldenhuys mine tailings dump, is directly
to the east of ..
Extracted from text ... CIVIL ENGINEERING ? JULY 2005 19
THERE HAS BEEN an unprecedented response
from the industry to the 2005 Steel
Awards. According to Rene? Pretorius, communications
manager of the South African
Institute of Steel Construction (SAISC), a
record number of entries has been received.
'We are not only pleased about the
quantum of entries but also the high
standard of some of the projects. It is testimony
to the excellent work currently being
done in steel in South Africa,' says Pretorius.
One of the excellent entries is the DTI
offi ce precinct, part of the DTI Campus in
Galvanised steelwork was used extensively
throughout the project with the galvanised
fi nish blending in with the African
rustic appeal ..
Extracted from text ... SIVIELE INGENIEURSWESE ? JULIE 2005 20
fi rst for South Africa
THE LIBERTY MIDLANDS MALL is proving
to be the catalyst for a series of new developments
in Pietermaritzburg and an innovative
traffi c feature could make the wheels
of commerce turn even more smoothly.
The location of the shopping centre
is ideal, with two interchanges on the N3
in very close proximity. But a very con-
fi ned site required innovative thinking
to provide an effi cient traffi c system and
stay within budget. The shopping centre
has the capability to generate signifi cant
volumes of traffi c which otherwise would
not be present on the localised street
system and this, along with the ..
Extracted from text ... SIVIELE INGENIEURSWESE ? JULIE 2005 22
NEXT TO THE Clearwater Mall site in
Roodepoort, Gauteng, WBHO Roads &
Earthworks has constructed a R55 million
quarter-link interchange at the intersection
of Hendrik Potgieter and Christiaan
de Wet roads to facilitate access to the
The Clearwater Interchange replaced the
existing at-grade intersection between the
two roads. The purpose of the interchange
was to alleviate the traffi c congestion at
the intersection and to make provision for
the additional traffi c in the Strubens Valley
urban area generated by the shopping centre,
as well as other future developments.
'The interchange was originally designed
as a conventional diamond interchange and
land was expropriated for this purpose,' says
the project leader, Cas ..
Extracted from text ... SIVIELE INGENIEURSWESE ? JULIE 2005 24
FOR THE FIRST TIME South Africa's splendid
climate has been incorporated in the design
of a shopping centre. Sporting a retractable
roof, the Clearwater Mall in Strubens Valley,
Roodepoort, brings the Highveld sun right
into the retail area.
The roof, the fi rst of its kind in the
country, sits atop an oval-shaped atrium
some 60 m across, and can be opened to take
advantage of sunny weather, similar to that
of a sports stadium.
ROOF ON ROLLERS
'A highly innovative design,' is how
Rob Bray, director of Bentel Associates
International and design architect for the
Clearwater project, describes the triangular
centre with the atrium located in the centre
of the triangle. ..
Extracted from text ... CIVIL ENGINEERING ? JULY 2005 27
CONSTRUCTION ON THE R750-million,
34-storey Michelangelo Towers in the
Sandton CBD, north of Johannesburg, is
nearing completion. The two retail levels
have already been handed over to the developer,
Legacy Group Holdings, and work
such as cladding and fi nishing on the tower
complex is progressing at speed.
Designed by architects Bentel Associates
International, the building's appearance
falls in the classical mould, but it is in all
aspects a modern building incorporating
the latest building and materials technology.
The contract is being carried out by a joint
venture between Group Five and Stocks
Building Africa (SBA).
PINNACLE OF ELEGANCE
Comprising a basement, podium and tower
block, Michelangelo Towers is a mixed-use
development. The basement ..
Extracted from text ... CIVIL ENGINEERING ? JULY 2005 29
MOHALE DAM in the Lesotho Highlands
has won two of the prestigious Fulton
Awards for excellence in the use of concrete.
The awards - South Africa's premier
construction industry accolades - were presented
at a banquet at the Emperor's Palace
on Friday, June 24. They are presented every
second year by the Concrete Society of
Southern Africa. The Cement & Concrete
Institute was anchor sponsor this year.
The winners of the 2005 Fulton Awards are:
Civil engineering projects category: Mohale
Dam, Lesotho Highlands. The entry
was submitted by consulting engineers
Mohale Consultants Group. The contractors
for the project, owned by the Lesotho
Highlands Development Authority, were
Mohale Dam Contractors.
. Building projects category: ..
Extracted from text ... SIVIELE INGENIEURSWESE ? JULIE 2005 30
WITH THE PROMULGATION OF the new construction regulations
under the Occupational Health and Safety Act, 1993 on 18 July
2003, the legislature created signifi cant and far-reaching responsibilities
for members of the construction industry.
WHO IS AFFECTED?
Before dealing with some specifi c regulations, it is important to understand
the mechanism employed by the legislature.
Regulation 2(1) states that: 'These Regulations shall apply to any
persons involved in construction work'.
The underlying principle behind the regulations is that every
party involved in construction works will be policed by another
party higher up in the construction chain. Legal liability for the
actions of parties lower down are transferred ..
Extracted from text ... SIVIELE INGENIEURSWESE ? JULIE 2005 32
THE RECENT IMPLEMENTATION of
the Construction Industry Development
Regulations, 2004 promises to place a further
administrative burden on the increasingly
regulated South African construction industry.
The Construction Industry Development
Board Act, No 38 of 2000 established the
Construction Industry Development Board
(CIDB) to provide leadership to stakeholders
in the industry and to implement an integrated
strategy to stimulate sustainable
growth, reform and improvement of the
construction sector. The CIDB, which is
responsible to the Minister of Public Works,
comprises private and public sector individuals
appointed by the minister on the basis
of their individual knowledge and expertise.
In addition to establishing the CIDB,
the Act provided for the future establishment
of registers of construction contractors
Extracted from text ... CIVIL ENGINEERING ? JULY 2005 33
The South African economy is enjoying a
period of low interest rates, low infl ation,
higher disposable income and a stronger
currency. On a quarter-to-quarter basis
the annualised rate of real gross domestic
product accelerated for fi ve consecutive
quarters to 5,5 % in the third quarter of
2003. A slight deceleration followed in the
fi nal quarter to 4 %, mainly due to weaker
performances of the mining and manufacturing
sectors on the back of the strong currency.
Expectations are that GDP will grow
in the region of 4 % during 2005.
The underlying expectation is that the
South African economy will be subject
to a prolonged period of ..
<br>Night-time rehabilitation of the
Southern Freeway (M4), Durban
<br>Quality Street / M4 Interchange Upgrade
<br>Infraset wins Johannesburg concrete pole contract
<br>Sustainable urban drainage - a boon for Southern Africa
<br>Time to pay for poor concrete designs
from the last 'boom'
<br>A winner - again
methods cannot meet demand
<br>Sporting a new look
Last meeting of the SAICE Board of Technicians and Technologists
<br>102nd AGM held in Midrand
<br>Important GCC 2004 seminar!
<br>Obituary : S.J.P. (Montie) Ellis 1938-2005
<br>Nuwe Genoot : Eddie Otte