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CONSTRUCTION WORLD
MAY
2015
FORMWORK AND SCAFFOLDING
It focuses on material rental and
labour contracts as well as sales
and design in both steel and
aluminium modular and system scaf-
folding. “Our contracts range from large
scale façade and engineered load bearing
steel kwik-stage scaffolding, to ultra-light-
weight aluminium hang scaffolds and
preassembled working platforms,” explains
says Nardus van Vuuren, the general
manager. “Our materials are of the highest
quality and conform to South African,
British and European standards.”
He continues: “In our experience,
each working at height requirement has
its own challenges. We identify these
challenges during a site inspection and
consultation session with the prospective
client. Once the site specific require-
ments are determined, we enter into
computer aided designwhere our qualified
designers apply world-class, state of the art
design software.”
From an operation perspective the
company’s product knowledge, working
at height training, experience and good
standard practice result in the safe, timeous
delivery of a tailored working at height
solution. “In addition to conventional
steel scaffolding we implement a range of
modular, pre-assembled and system scaf-
fold in high grade aluminium in an attempt
to utilise resources more efficiently and
speed up turnaround time on projects,”
says Van Vuuren.
Their in-house safety department
ensures compliance with relevant legis-
lation such as the Occupational Health
and Safety Act of 2003 and the recent
Construction Regulation of 2014. The
company conducts internal safety audits
to ensure safety standard are upheld.
“When considering the vast array of
working at height solutions on offer it is
imperative for our business that our foot-
print in the industry grows accordingly.
We are in the fortunate position to have
operations in the Northern Cape, Eastern
Cape, Gauteng, Mpumalanga and Limpopo
which allow us to take care of your needs
country wide. Furthermore we have had
the pleasure of working in Sub-Saharan
and Northern Africa with great success.
Our vision of the future is set on safe effi-
cient service delivery at height,” concludes
Van Vuuren.
GOING FROM STRENGTH TO
STRENGTH
Johannesburg Scaffolding has
gone fromstrength to strength
in prov iding innovat ive
working at height solutions
over the past 15 years.
>
system components, and can be quickly
assembled or adapted by means of stand-
ardized bolted connections. Supplementing
the VARIOKIT formwork carriage construc-
tion is a PERI UP working scaffold.
This has been optimally adapted to
match the cross-sectional geometry of the
arch and ensures the rapid and safe execu-
tion of the waterproofing and reinforcement
work in advance of the tunnel formwork
carriage.
The VARIOKIT modular
concept
VARIOKIT is designed to accommodate the
known load combinations of the tunnel,
bridge and high-rise building construction.
With standardised, rentable system compo-
nents and site-compliant connection means,
supporting formwork can be cost-effec-
tively realized and geometrically adapted
to suit the structure. For the construction
of traffic-related structures with low usage,
in particular, the rapid availability of mate-
rials as well as the quick and easy assembly
results in enormous time and cost savings.
Moreover, PERI VARIOKIT project solutions
together with the corresponding equipment
options can be tailored to fulfil the respec-
tive project requirements.
Historical challenge
Currently, the African metro project includes
the construction of the twin-track tunnel
along with the development of two metro
stations. To the north of the Tafourah end
station, located close to the palatial Grand
Post Office, Line 1 is being extended by a
total of 1,7 km with the addition of the Ali
Boumendjel station (Emir Abdelkader Place)
and the Place des Martyrs station. Construc-
tion work is being carried out within the city
centre which features numerous mosques
and palaces as well as under the historic
old town (Kasbah) which is a UNESCO World
Heritage Site. This has presented a major
challenge for all project participants.
Comprehensive tunnel
formwork solutions
The formwork and scaffolding solution for
the entire construction project was devel-
oped by a team of PERI engineers from
Algeria, Portugal, Spain and Germany. Four
tunnel formwork carriages are being used: in
addition to the VARIOKIT formwork carriage
construction for the ‘Place des Martyrs, a
second project formwork carriage with a
9,3 m radius is being utilized for the reali-
sation of the Ali Boumendjel intermediate
station. Two other project-specific tunnel
formwork carriages are being used for the
construction of the 1 450 m long tunnel with
its 4,5 m radius. This means that almost 10 m
reinforced concrete tubes are being formed
and concreted using mining techniques on a
daily basis.