MASTER’S FIELD PROJECT
APRIL 2019
When reflecting on the work of our practice, the chamfered corner, is a recurring interest. This detail has developed over the years from our preoccupations with the Miesian re-entrant corner, the simplicity of a trabeated structure, and a desire to find ways of expressing a deep façade.
Simple chamfers in concrete and stone were employed in recent completed projects for Hampshire House and The Sultan Nazrin Shah Centre, Oxford. At the Master’s Field site in Oxford, currently under construction for Balliol College, a corbelled chamfered detail is incorporated in a load bearing façade. This project comprises eight student accommodation buildings and a pavilion arranged around a series of courtyards overlooking a cricket pitch.
A brick-clad chamfer at the corner between two windows is used throughout the accommodation buildings. This establishes a shifting perspectival relationship as one moves through the site, and gives all the buildings a common language. Corbelled brick and concrete lintels and mullions set up a trabeated structural rhythm which clearly defines each individual student bedroom and creates a delicate play of light and shadow across the façade. A series of finely detailed brick and concrete panels are layered within the depth of the window reveal, articulating a secondary rhythm which expresses the transition from solid to glazed elements.
The detail enables the depth and structure of the wall to be elegantly expressed, maximizing its presence when viewed externally and minimizing its presence internally. It also forms a generous threshold which provides privacy for students inside engrossed in their study. For moments of welcome distraction, the large picture windows frame uninterrupted views over the cricket pitch and across the campus.
The expression of a chamfered corner produces challenges in construction, particularly when expressed in precast concrete components clad in corbelled brickwork. When forming acute angles with orthogonal bricks, special consideration must be given to alignments and bonding. Interface details demand careful thought regarding sequencing and tolerances to achieve a symbiosis of structural performance with aesthetic ambition.
Externally, in the plan detail shown here, the apex of the chamfer is formed from stacked brick headers. This exposes three faces of each brick, limiting the choice of bricks, which are typically produced with only one finished stretcher face. Brick specials are required to form the chamfered corbel of the lintels, and grids are carefully set out to ensure alignment of vertical and horizontal corbelling. We looked to the meticulously detailed and crafted brickwork of Jensen-Klint’s masterpiece, Grundvig’s Church in Copenhagen, for expression of stepped vertical forms.
Internally, minimising the corner where the windows meet produces intricate challenges in the alignment of linings, blinds, reveals and fitted furniture. This complex resolution of constituent parts all work hard to achieve the aesthetic objective of the simple glazed chamfered corner.
Detail Key
1.Whitewashed ply bench 2. Aluminium window 3.Whitewashed plywood reveal 4.Plasterboard 5.Rigid insulation 6.Steel window fixing brackets 7.Metal pressing 8.Wind post 9.EPDM/ vapour barrier 10.Mineral wool insulation 11.Breather membrane 12.Steel restraint brackets 13.Corbelled brick faced precast concrete mullion 14.Flashing 15.Concrete cill 16.Concealed curtain track 17.Oak joist over 18.Concealed roller blind 19.Timber panels 20.Timber framed window 21.Prelaminated timber frame 22.Precast concrete mullion 23.Precast concrete coping over
ASSYRIAN CARPET
MARCH 2014
At the Assyrian collection at the British Museum, set amongst the colossal gateways of winged beasts with human heads and resplendent reliefs of bloody scenes from lion hunts, there is a large gypsum alabaster stone panel that was once a decoratively carved and painted door sill made up of inter-weaving patterns and borders, in imitation of a magnificent carpet.
Now wall-mounted in its current home, its intricacies can be clearly admired. Alabaster was discovered by the Assyrians circa 879BC to be ideal for carving fine ornament detail, and huge pieces were accordingly quarried, transported and installed as panels in the internal rooms of royal palaces where reliefs or pattern befitting a king would be carved with an astonishing level of skill within a surface depth of 10-15mm.
For Niall McLaughlin Architects T1 project, carried out for Argent on the King’s Cross redevelopment site, a motif from this ancient panel is being incorporated, along with other patterns from ancient Egypt to the twentieth century, into a number of repeating pre-cast elements that will form the building’s decorative facades and bring this enigmatic piece of deracinated design a new lease of life.
We are currently working towards achieving this in a collaboration with the client and the project’s contractor and a team of architectural pre-cast specialists. After carefully interpreting the motif and integrating it into the facade scheme; the proposed design is now being taken forward by mould makers who are utilising 3D routers to form prototypes of a pattern mould. The first results, which are being awaited with no little anticipation by the design team, will be analysed and the depth and colour of the reliefs carefully calibrated. Within a short period of time the small extract of pattern from an Assyrian carpet in existence nearly three thousand years ago will have a physical presence as part of a tapestry of other pre-cast components on this distinctive building forming, part of this ambitious development in the centre of London.
Image of Assyrian carpet pattern engraved in stone from Gottfried Semper Style in the Technical and Tectonic Arts; or, Practical Aesthetics, Getty Publications, 2004
Tim Burton studied architecture at London Metropolitan University and the ETH Zürich after a previous degree in Fine Art and Art History at Goldsmith’s College and experience within the film industry. He has also worked for Gramazio and Kohler’s Research Chair for Architecture and Digital Fabrication. Tim joined Niall McLaughlin Architects in 2012. Since joining the practice, he has worked on a Peabody housing project in Whitechapel and the T1 Building for Argent in London’s Kings Cross. The T1 Building is a large mixed use development containing a district energy centre, an indoor sports pitch, car parking, shops, bars and 80 apartments.