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light steel frame building
category nominations

CATEGORY WINNER
STEEL AWARDS 2010
WINNER: LIGHT
STEEL FRAME
BUILDING
Sponsored by the NJR Steel
ZAMBESI RETAIL
MALL EXTENSIONS
The main contractor confirms:
“this project could not have been
completed in any other way – the low
mass and excellent acoustic
insulation made light steel framing
the only possible solution.”
64 Steel Construction Vol. 34 No. 5 September 2010
During the past two years light steel frame building has come to the fore and was
showcased in Steel Awards 2008 and 2009. In both instances the prizes went to
houses. The construction industry has, however, since discovered that this form of
construction can be used for many other applications as seen in many of the 2010
LSFB entries.
One of these applications, used to great effect, was the extension of a shopping
mall. Lightweight steel’s long roof span capabilities as well as its use in the
construction of high walls for the cinema walls including the internal walls with
their exacting acoustic requirements just showed the potential of LSFB. The winner
in the light steel frame category – the Zambezi Mall – is a good example of this
application.
THE LIGHTWEIGHT STEEL ROOF STRUCTURE
At the time this roof was supplied and erected, it was the biggest lightweight steel
roof in South Africa: A total of 7 700m2 including overhangs. The sheer size of this
roof and the three separate roofs spanning between 7.5m up to a maximum of
30m clear covering an area of 7 200m2 already make this an interesting project.
The northern portion of the roof had to cover a cinema area, and was supported
on 12m high concrete columns along the northern edge. The columns were fixed
to the concrete supporting slab and columns below. The columns were stabilised
by applying a 5kN tensioning force through the tie beams of each of the lightweight
steel trusses.

CATEGORY WINNER
STEEL AWARDS 2010
The lightweight solution was chosen by the client
for the project because of timing issues, it could
be delivered and erected within two months of
being ordered.
The professional team was initially skeptical
about the appearance of the fully exposed light-
project team
Roof
Developer/Owner:
Capicol (Pty) Ltd
Architect:
OSGLO Pretoria Architects (Pty) Ltd
Structural Engineer:
Laubscher Engineers Africa
Quantity Surveyor:
Machlachlan du Plooy (Pty) Ltd with
Batticlo Holdings (Pty) Ltd
Main Contractor:
WF Kroon Projects (Pty) Ltd
Roof Steelwork Contractor:
MaxSpan cc
LSFB Steel Roof Erector:
All Africa Truss Systems cc
LSFB Roof Truss Fabricator:
MiTek Industries
LSFB Wall Erector:
Blue Sands and Razorbill
LSFB Steel Wall Frame Supplier:
Razorbill
66 Steel Construction Vol. 34 No. 5 September 2010
weight steel trusses below the very large, clear glass skylight, but had to
accept the option due to the price differential. The galvanized lightweight
trusses were galv-washed and painted by airless spray gun to the architect’s
specification. The entire professional team expressed their satisfaction with
the result.
The southern portion of the roof was initially planned to cover a restaurant
area but it was changed to accommodate an indoor cricket facility. To comply
with the international specifications for indoor cricket, the underside of the
roof at the lower end was found to be 750mm too low. By this time half of
the roof trusses had already been erected. The support at this lower end of
the roof was subsequently raised by 750mm using lightweight stub columns
and steel beams. Without even removing the lightweight roof trusses, the
new raised supports were installed, and the roof was replaced. This demonstrated
the roof truss as well as steel beam and column flexibility in this
last-minute change.
THE LIGHTWEIGHT STEEL WALLING PROJECT
After construction of the Zambezi Mall had started, the developers decided
to add six small movie theatres on top of an existing slab. Accordingly, the
mass of the walling had to be kept low, and at the same time an acoustic
insulation of 85dB had to be achieved between the theatres.

The external wall (2 450m2 ) is 12m high, had to resist wind forces, and provide
the necessary thermal and acoustic insulation for the internal spaces.
A multi-layered fire-stop Gypsum board, stone wool insulation, extruded
polystyrene insulation, and an air-gap system plastered with a Saint Gobain
Etics system (600mm wide) were devised to meet the technical and strength
requirements.
This unique application of LSFB to achieve very high acoustic insulation, as
well as to serve as a façade wall for a multi-storey building, has opened new
markets for LSFB.
The main contractor confirms: “this project could not have been completed
in any other way – the low mass and excellent acoustic insulation made light
steel framing the only possible solution. It was also amazing how clean the
process was (very little waste), which meant that it allowed all the other
building activities to carry on without interruption. I’ll definitely consider
using LSFB again in future!”
JUDGE’S COMMENT
The problem with visiting a LSFB project is that when the project is
completed you cannot see the difference between a lightweight steel wall
light steel frame building
category nomination
CATEGORY WINNER
STEEL AWARDS 2010
and a brick wall. And that’s maybe the beauty of
it too!
Luckily with the Zambezi Mall, some of the
lightweight steel was exposed and very
elegantly in the case of the roof light.
The requirements of this project just show how
LSFB is sometimes the only answer.
■ It was cheaper than other solutions. In this
case money speaks!
■ LSFB was the only solution to the technically
demanding walling system of the cinema.
■ Weight saving was a necessity.
■ It’s clean, quick and flexible!
What more does a developer want when he is
building a retail mall and requires easy solutions
to resolve last-minute extensions to the structure?
Camp Pemba – Mozambique SHORTLISTED
PROJECT TEAM
Developer/Owner:
Anadarko
Architect:
Len Lategan Management Services cc
Structural Engineer:
JNJ Richter
Main Contractor:
Remote Site Solutions
Steelwork Contractor:
Innosteel (Pty) Ltd
Steel Construction Vol. 34 No. 5 September 2010 67

CATEGORY NOMINATIONS
STEEL AWARDS 2010
light steel frame building
category nomination
LSFB Solution – Eastgate Mall SHORTLISTED
PROJECT TEAM
Developer/Owner:
Liberty Life
Principal Agent:
Henry Mokala Projects
Architect:
MDS Architects
Structural Engineer:
AKI (now part of Aurecon Group)
Quantity Surveyor:
MLC Quantity Surveyors
Main Contractor:
Grinaker-LTA Building Inland
LSFB Contractor:
Vela SBS/Browndeck
light steel frame building
category nomination
Head South Lodge, Green Point SHORTLISTED
PROJECT TEAM
Developer/Owner:
The Scintilla Property Corporation t/a Head
South Lodge
Architect:
Philip Briel Architects
Structural Engineer:
Element Consulting Engineers
Project Manager:
Levico Construction
Main Contractor:
Levico Construction
Steelwork Contractor:
Light Frame Homes
68 Steel Construction Vol. 34 No. 5 September 2010

CATEGORY NOMINATIONS
STEEL AWARDS 2010
light steel frame building
category nomination
House Venter SHORTLISTED
PROJECT TEAM
Developer/Owner:
Albert Venter
Architect:
Louis Liebenberg Architects
Structural Engineer:
JNJ Richter
Main Contractor:
IKN Construction cc
Steelwork Contractor:
Innosteel (Pty) ltd
light steel frame building
category nomination
Saxon Villas Roof and Skylights SHORTLISTED
PROJECT TEAM
Developer/Owner:
Napier Gardens (Pty) Ltd
Architect:
Len Lategan Management Services cc
Structural Engineer:
JNJ Richter
Quantity Surveyor:
Brian Heineburg & Associates cc
Project Manager:
SIP Project Managers (Pty) Ltd
Main Contractor:
GIP Builders (Pty) Ltd
Steelwork Contractor:
Innosteel (Pty) Ltd
70 Steel Construction Vol. 34 No. 5 September 2010

light steel frame building
category nomination
CATEGORY NOMINATIONS
STEEL AWARDS 2010
H-Block Buildings – Medupi and Kusile Power Stations SHORTLISTED
PROJECT TEAM
Developer/Owner:
Eskom (Kusile); Kwikspace (Medupi 1 & 2)
Structural Engineer:
HAGE Projects (Previously Molapo);
By design (Medupi 2)
Project Manager:
Ben Wasserman (Kusile); Jonathan Palm
(Medupi 1); Gert Rautenbach (Medupi 2)
Main Contractor:
Roshcon Site Services (Kusile); Zingco 111
Trading (Medupi 1); Fishertech (Medupi 2)
Steelwork Contractor:
Structures 2000 & Tass Engineering (Pty) Ltd
(Kusile); Zingco 111 Trading (Medupi 1);
Fishertech (Medupi 2)
Steel Construction Vol. 34 No. 5 September 2010 71

CATEGORY NOMINATIONS
STEEL AWARDS 2010
light steel frame building
category nomination
Stark Studios – Support for Soundproofing Materials SHORTLISTED
PROJECT TEAM
Developer/Owner:
Polkadots Properties 84 (Pty) Ltd
Architect:
Joeke Monteira
Structural Engineer:
JNJ Richter
Main Contractor:
Bastion Construction (Pty) Ltd
Steelwork Contractor:
Innosteel (Pty) ltd
light steel frame building
category nomination
House Blue Myrtle
PROJECT TEAM
Developer/Owner:
Blue Myrtle Trust
Architect:
Ichtus Studios Architects, Tzaneen
Structural Engineer:
Hans Bosch PR Eng., Mosselbay
Quantity Surveyor:
QuanSur (Pty) Ltd, George
Main Contractor: (partly)
Steelframe Developments
Steelwork Contractor:
SA Steelframe Systems cc
Timber Ceilings, Floors and Decks:
Ockert Tucker
72 Steel Construction Vol. 34 No. 5 September 2010