Design of a Composite Outrigger Structure for the Dubai Tower, Doha

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Title: Design of a Composite Outrigger Structure for the Dubai Tower, Doha

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Publication: CIA

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Date: 2/28/2011

Abstract:
Advanced methods of design and efficient use of high performance sustainable materials were employed by engineers to deliver an effective solution for the construction of outrigger elements of one of the tallest building in the world. In the case of super tall structures the outriggers represent an effective system of improving the lateral behaviour of the structure, through load sharing between central core wall and perimeter columns. However the magnitude of the design forces and the construction difficulties make them one of the most difficult and challenging tasks for the engineers designing high rise structures. The paper presents the main challenges and the innovative design solutions to overcome them. The efficient use of high strength concrete in combination with steel sections provided an elegant effective structural system that was able to transfer significant forces from the core wall to the tower columns and in the same time to accommodate the multitude of services required for the functions of the Dubai Tower, a 438m tall mix usage building currently under construction in Doha Qatar. Design codes along with advanced analysis techniques and constructability issues are also discussed.


Concrete Institute of Australia, International Partner Access.

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