The Challenge:

  • Providing innovative build solutions to the project to save time wherever possible
  • Fast paced frame construction in the height of the summer months reducing the average pour cycle from 17 to 14 days
  • Strategic sub-contract management to speed up construction without formal acceleration
  • Delivering 14 apartments per week in the finishing phase
  • Maintaining consistent project momentum and seeking the collaboration of key subcontractors.

The Solution:

Podium floor plates comprising P1, P2 and L3 are each  cast in four pours bisected along the route of the movement joint in the slab.  The concrete ramp beginning at ground floor and terminating at podium 2 is cast at a slightly later date to the main floor plate to allow the superstructure to progress more swiftly. 

The first accommodation units are found at level 3 which is a communal floor plate where swimming pools, landscaping and common areas are located.  From level 4 up to the 15th level gym, the floor plates are cast in two pours both of which are close to being identical in size and bisected along the movement joint.  To ease logistical congestion and to flatten hook time on tower cranes, plot 929 and 930 follow a staggered sequence during construction of the frame.

Progressing each plot concurrently in its structural phase is managed independently of one another in terms of resources comprising: engineering lead; foreman supervision; skilled / unskilled labour; formwork, permanent materials, lifting and access.  The only common resource shall be the Construction Manager and site office support comprising safety, quality, stores etc.

As the building construction phase moves into architectural elements of facade and finishes the engineering leads shall assume package management responsibility across both plots alongside their structural responsibilities.  It is envisaged that most non-structural packages shall be subcontract led and the model of managing subcontracts is supported by a single point of responsibility.

The Impact:

The project consists of 576 residential apartments comprised of studio, one and two bedroom units arranged across two identical handed towers configured in opposite ‘U’ shape on plan.

An upper podium level landscaped area consisting of a pool deck, soft and hard areas compliment the residential floors.

The project in numbers:

  • 40,000m3 of Concrete
  • Largest single pour 2,623 m3
  • 5,000 Tonnes of Reinforcement
  • 100,000 m2 of Blockwork
  • Best slab cycle 12 days
  • The main MEP distribution in the common corridors was heavily congested and from a very early stage the decision was taken to install MEP cassette modules saving both on site time and improving quality of installation.

The project was delivered in a timescale exceeding local norms, resulting in a happy happy client and happy consulting engineer.

The project concluded in a timescale exceeding local norms and achieved 3 million manhours LTI free.



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