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UN building

Expert statement in the context of the repair of the building

The UN building in Abuja, Nigeria's capital, was badly damaged by a bomb attack in August 2011.

The building consists of a central area with three wings, connected in an angle of 120°. Each wing is approx. 45 m long and executed as a reinforced concrete skeleton structure. The slabs, also serving as bracing elements for the building, consist mostly of precast concrete elements. To some part, also concrete blocks and bricks made from concrete were used.

The main area of the building has been destroyed by the explosion and the fire that followed and had to be demolished. The less severely damaged wings of the building had to be checked concerning their structural safety and durability.

ZPP has been commissioned by Julius Berger International GmbH with an expert statement according to European standards concerning the current state of structural safety of the three wings of the building and their damage. Furthermore, ZPP has been commissioned with the composition of possible repair concepts. For this, execution drawings have been evaluated and the results have been analysed and assessed using the appropriate calculation models. Afterwards, possible repair concepts have been developed and summarised in an expert statement.

Client
Julius Berger International GmbH
Period of service
2013
Location
Abuja, Nigeria
Services
  • Expert Reporting

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