40
international
construction
november 2013
Tackling extremes
LARGE STRUCTURES
>
and a highly organised approach is crucial to keep things moving
efficiently.
In South America, for instance, equipment from Terex and its
sister brand Genie is supporting construction of the final stages
of the 45,000 seat Arena da Amazonia Stadium in Manaus, the
capital of the Brazilian state of Amazônia.
Set to host four matches during next year’s FIFA World Cup,
the stadium is being built by a trio of contractors – Andrade
Guitierrez, ENTEC, and Tomiasi – and was designed by GMP
Architekten.
The stadium’s most striking feature is its self-supporting roof,
construction of which is currently underway. Made from over 200
pieces of steel and weighing over 6670 tons (6500 tonnes), the
roof structure will consist of mutually supporting cantilevers with
steel hollow core girders. The largest individual components are
22 m long and weigh 30 tons (27 tonnes).
Sub-assemblies
A fleert of Terex all-terrain cranes, previously used to place pre-
cast elements during the initial construction phases, are lifting
individual parts of the roof to form sub-assemblies, which in turn
will be lifted and put into place with a Terex CC 2400-1 crawler
crane. Finally, construction workers weld them together with
the help of Genie Z 80/60 boom lists for access. Construction is
scheduled for completion at the end of the year.
Once the parts arrive at the site, work is co-ordinated almost like
an assembly line, according to Thiago Bezerra, construction and
equipment engineer at contractor Andrade Guitierrez.
“The Genie booms were perfect for this project. The structures
were very complex, as you and the ample freedom of movement
of the Genie Z boom allowed us to work efficiently and safely. The
technological advance of construction machines like these allow
the increasingly complex and innovative to happen,” he said.
Similarly, RMD Kwikform needed to pool its resources in order
to source equipment quickly to support the construction of a new
water infrastructure project in Doha, Qatar.
Qatar Building Company (QBC) used a range of formwork and
shoring equipment from RMD Kwikform to cast slabs on four
large concrete reservoirs. Each circular reservoir is 8 m high with a
diameter of 125 m, and the programme allowed just four months
for the slab construction.
RMD Kwikform’s Alshor Plus and Rapidshor shoring tables
were supplied, together with Superslim Soldiers and GTX timber
beam supported formwork. The company sourced the formwork
from across its Middle East businesses.
A QBC spokesperson said, “For this project it was all about time
and scale. We had four months to get the job done and we knew
we needed to source a significant amount of equipment, get it to
site swiftly, erect it and get it offsite efficiently, once the job was
completed.
“Having worked with RMD Kwikform for over five years and
more recently on a similar water project, we knew they could
design a solution to meet our needs. Having previously used
Alshor Plus in particular, we knew our site staff would also be
familiar with the product and therefore faster in the erection and
dismantling processes.”
The spokesperson said that by erecting Alshor Plus and
Rapidshor into 7.5 m high table sets, they had reduced the need
for erection and dismantling, cutting up
to -50% off the time from one pour to
the next. In total, 550 tables were used
to construct the main soffit slab for the
project.
Izzet Ataol, sales manager for RMD
Kwikform said the main challenge was the
huge amount of equipment needed for the
job.
“Logistically we had to work very quickly
to co-ordinate the delivery of equipment.
We then liaised with the QBC team to
ensure we delivered the right amount of
equipment to site, when it was needed.”
Equipment from Terex and its
sister brand Genie is supporting
construction of the 45,000 seat
Arena da Amazonia Stadium in
Manaus, Amazônia, Brazil.
Meva’s SecuritBasic worker safety equipment was
used by contractor Erne in Switzerland on a CHF
500 million (US$ 553 million) project to build new
production facilities for Stein.
