Fast-track projects demand new strategies
in Qatar
Doha largely unacquainted with
fast-track construction, says UrbaCon Contracting & Trading
UrbaCon Contracting & Trading (UCC) has
noted how fast-track projects are requiring Qatari contractors to use innovate
construction strategies often relatively unfamiliar to the country.
Joseph M.J, planning director at UCC, says:
“Because most of the projects we are handling are fast-track, we have to execute
the project in an unconventional manner, and here, as a turnkey contractor, we
have to bring in the capability of design management.”
Mohamed Moataz AlKhayat, notes: “The Doha market is not
used to these fast-track projects, and success comes down to the careful
planning of the construction. We never compromise quality, but do pursue
alternative construction methods and technologies.”
Two particular methods that UCC is
employing to accelerate its schedules are a change in design of both the
formwork systems to get a faster output and in the design of pre-cast as
opposed to conventional structures.
M.J explains: “For slabs, rather than going
for conventional slab formwork we use table forms for which we can dismantle
and handle the formwork more easily and more rapidly.”
“We have also changed the conventional slab
into post-tensioned slabs, allowing us to strip off the formwork much earlier -
within a week to ten days rather than weeks.”
UCC has then implemented the technique on
several heavy structure projects in Qatar, including in the construction of the
underground car park for Souq Waqif.
Ramez AlKhayat, MD of UCC, notes: “Pre-cast is not
that widely used in Qatar, but at Souq Waqif we used pre-cast columns reaching
three floors high, so if you carefully manage the pre-cast there is an
advantage because there is always a pre-construction process.”
One reason why pre-cast is so unusual in
Qatar is that it relies even more so than other construction techniques on
precise just-in-time logistics, from factory straight to site.
M.J adds: “Unless pre-cast is well managed
it may give a negative effect, because if you are late in the delivery of the
pre-cast elements then there is no value in it. However, on balance, if you can
pull it off than it saves time as well as risk on-site.”
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