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Contractors World - INTERNATIONAL
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Contractors World INTERNATIONAL - 2016 Vol 7 No 3

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New Abu Dhabi Airport Terminal Takes Off - page 3 of 6

Extremely high shoring towers that could be easily relocated was one of the engineering challenges for RMD Kwikford

Extremely high shoring towers that could be easily relocated was one of the engineering challenges
for RMD Kwikform

Curving in both the horizontal and vertical axes, the construction of the terminal building relies on millimetre accuracy to install each specially fabricated segment, which forms the arches and a central girder.

As part of the construction planning process, RMD Kwikform engineers worked with steel roof sub-contractor, China State Construction Engg Corporation (CSCEC), to design bespoke components and solutions using 3D modelling for the phased erection of the arches.

This process included the design of a modular Megashor heavy-duty support system for the erection of the steel arches. This was coupled with additional shoring solutions for the steel buttresses and transfer slab that formed the foundations for the arches.

With a need to support the arches in both the vertical and horizontal planes, a critical component of the solution was the design of a special ball joint, with an additional jacking frame system. In order to ensure the frame was able to cope with the key loading forces and changeable climatic conditions, including high wind and heat, the engineering teams used the latest modelling technology before components were then fabricated and tested.

Commenting on the support solution, RMD Kwikform UAE General Manager, Chris Jardine said:

Loading and stresses on the formwork and shoring were different for every single node point; we had to take a 3D model to form a solution that could operate safely and securely.
     As the contractor wanted to be able to use the frames multiple times, our solution had to be flexible enough to cope with the adjustments required at different parts of the erection phasing.

In addition to designing the jacking frames, RMD Kwikform designed and supplied the support towers, which varied in height from 15 to 45 metres.

Using its Megashor propping system, the formwork engineers had to vary the footprint of the towers to increase or reduce stiffness, to both optimise sharing of the load and cope with thermal movements (due to temperature variance from day to night) of wind forces and dead loads.

The support system had to coping with vertical loads of up to 500 kN and horizontal loads of up to 75 kN.

page 4 of 6 >>>

Curving in both the horizontal and vertical axes, the construction of the terminal building relies on millimetre accuracy to install each specially fabricated segment, which forms the arches and a central girder

Curving in both the horizontal and vertical axes, the construction of the terminal building relies on millimetre accuracy to install each specially fabricated segment, which forms the arches and a central girder.


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