• £38m Capital Quarter, Cardiff

    Value: £38m
    Client: Fusion Students
    Architect: Corstorphine + Wright
    Services: Structural Engineering; Environmental; Infrastructure; Transport Planning

    Read more…

    A new 690 bed student accommodation complex in the centre of Cardiff, comprising of an 8-storey south block and a 26-storey north tower, all of reinforced concrete. The triangular shaped site is bounded by a Network Rail line on the north, a canal in the east and the busy Herbert Street in the south that imposed various and challenging constraints to the project.

    A total 8,500m3 volume of concrete and over 1000 tonnes of steel were required for the construction of the building. 285no of CFA piles 600mm in diameter were installed for the foundations of the two blocks, and ¼ of these were used to support the central core of the tower alone. The total height of the North block exceeds 80m and is one of the tallest buildings in Wales.

    Key points:

    • Axial shortening of columns and walls affected by relative humidity, age of loading, creep etc. had to be evaluated and incorporated in the construction methodology
    • Wind tunnel testing was conducted on a scale model of the building that provided rigorous wind data for refined cladding design, dynamic analysis of the tower and assessment of the ‘comfort factor’ of the upper floors.
    • All columns of the scheme were precast in C50/60 concrete, and the core of the tower was constructed in a slipform arrangement at 300mm/hr rate using C40/60 grade of concrete.