Construction—EMEA—Qatar—Commercial Buildings
Safe and fast: Flat Slab Post-Tensioning at the AQ 01 Gateway Tower
at Abraj Quarter on The Pearl
The Pearl is a 400ha artificial island located 330m from Qatar’s east coast and approximately
11km northeast of the center of Doha. The island is divided into 10 quarters and offers room for
many new family homes and apartment buildings, schools, kindergartens, hotels, shops and
restaurants.
One of the 10 zones on the island, the
13ha Abraj Quarter, accommodates 200
new town houses and 7 apartment towers.
Two of these towers, Gateway Towers
AQ 01 and AQ 02, flank the access road to
the Pearl, thus forming the island’s gate.
The slabs of the podiums, mezzanine floors
and floors with a total area of 90,000m² were
built as post-tensioned flat slabs. The joint
venture consisting of DSI Middle East W.L.L.
and DYWIDAG-Systems International GmbH,
GBU, Germany, was awarded the contract for
the production and supply of Types 3-0.5" and
5-0.5" DYWIDAG Strand Tendons including
approximately 8,000 Type FA Flat Anchorages
for Tower AQ 01. Approximately 400t of
strand were needed for the tendons.
As the subcontractor for post-tensioning,
DSI Middle East not only supplied the post-
tensioning systems, but also supervised
the correct installation of the DYWIDAG
Strand Tendons on site, thus ensuring
that construction proceeded smoothly.
Owner
United Development Company
QSC (UDC), Qatar
General Contractor
Redco Construction - Al Mana,
Qatar
Consulting
Dar Al-Handasah (Shair and
Partners), Qatar
Architect
WZMH Architects, Canada
Consulting Engineers
KEO International Consultants, Qatar
Subcontractor
Post-Tensioning Systems
DSI Middle East, Qatar (formerly QACS)
DSI Middle East Scope
Design, production, supply, supervision
DYWIDAG Products
Types 3-0.5" and 5-0.5" DYWIDAG Strand
Tendons including approximately 8,000 Type
FA Flat Anchorages
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