Doha Tower

Doha, Qatar
Sheik Saud Al Thani
Ateliers Jean Nouvel
57 000 m²
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Multi-disciplinary engineering design

This 44 storey helicoidal structure created real structural engineering design challenges, including the outward “bursting” forces created by the geometry which were redistributed by the use of post-tensioned ring beams at each level. A huge basement was formed using a secant piling procedure and dewatering which lasted several months prior to building. The principal frame was designed as a tube, with the outer reinforced concrete double helix structure taking both vertical load and up to 75% of the lateral wind bracing loads. The floors were designed as a mixture of composite steel and reinforced concrete. The Moucharabieh which acts as a sunscreen was designed as four overlaid panels of complementary geometric patterns.

Winner of  “The 50 Most Influential Tall Buildings of the Last 50 Years » awarded by CTBUH.

Prize “Best Tall Building Worldwide 2012” awarded by CTBUH.