Infinity Tower being built at Dubai Marina, is ahead of schedule with the first podium slab due to be concreted within days.
The 73-storey residential tower with a dynamic twisting shape and waterfront views is the first structure of its kind and will be more than 300 metres high and a dominant feature of Dubai Marina's landscape. It will also be the world's tallest tower to feature a 90-degree twist.
Construction work on the project started in June 2008. The central core wall has already reached the tenth level with six basement floors, ground floor and mezzanine floor already complete.
Arabtec Construction, the main contractor, has engaged about 1,000 workers round the clock. The structural system for the tower is high-strength concrete core with a reinforced concrete column superstructure that rotates with the twisting shape. Each floor will accommodate a 1.08-degree twist to achieve the full 90-degree spiral.
The project, being developed by Cayan Investment and Development, was designed principally by Skidmore, Owings and Merill (SOM) and the detailed design was developed by Khatib & Alami. The latter is also engaged in construction supervision works. Currie & Brown is the client's representative and cost manager.
Brian Quigley, Middle East Director of Currie & Brown, said: "We are pleased to be involved with this prestigious project and we are particularly impressed with the proactive way that Arabtec has addressed the complex construction issues."
William Baker, SOM's partner and lead structural engineer on Burj Dubai who is also in-charge of the structural design of Infinity Tower, said: "Arabtec Construction has spent a great deal of effort studying the issues involved in building such a sophisticated structure. Arabtec is clearly dedicated to achieving high quality in the construction of this important structure."
Special aluminum light weight formwork system designed for this project will be used for the floors.