The Civil Engineering Contractor November 2018 | Page 27
TECHNOLOGY
SKYDECK and MULTIFLEX slab
systems were selected due to the
faster slab cycles achievable — a
critical factor in this fast-track
project, which aimed to top-out by
August. The balcony slab construction
required complex back-propping,
including the support of 6.5m-high
feature concrete walls.
The climbing systems used, in
conjunction with the VARIO
GT24 wall formwork, consisted
of specialised SRU, CB 240, and
BR platforms, and an additional
RCS-CL. “The RCS-CL has been
developed specifically for cores in
medium-height buildings leading
with limited crane capacities and
hook times,” technical representative
Stephen Sprong points out.
“The main benefit of the RCS-
CL system is that there are reduced
crane requirements for the core;
a particular advantage on a highly
constrained site, which also freed
up time for related construction
activities,” Sprong comments. “Our
main challenges on this project have
been limited cranes, site space, and
laydown areas. In addition, there was
a specific requirement for concrete
work with a high degree of accuracy,
with an ultra-smooth finish on all
vertical structural elements.”
Importance of BIM
further strengthened
PERI has been one of the leading
companies in the construction
industry for many years regarding the
integration of BIM, and it can already
boast a number of international
project references that have been
successfully developed together with
customers using BIM principles.
The most recent example is the
Saldanha MOGS project — the largest
project in the history of PERI South
Africa, which is being completely
realised using BIM methods. For this
project, PERI has been supplying
formwork and scaffolding materials
for the construction of an oil storage
facility consisting of 12 underground
circular tanks with a capacity of
13-million barrels of crude oil. Each
tank has the footprint of two football
fields and is 17m high. nn
References
TECON Self-climbing system TSC80 is a crane-independent climbing formwork system
and can be used for high-rise buildings and bridge pylons of any of shape and height.
PERI technical representative Stephen Sprong.
www.civilsonline.co.za
• Müller, H. (1972).
Rationalisierung des
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• Rathfelder, M. (1992).
Moderne Schalungstechnik,
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München, Germany:
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624–626.
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