The reciprocal frame is a recently patented, 3-dimensional grillage system, used primarily for roofs and constructed mainly in timber. There is considerable architectural potential for the use of this type of structure for small, medium and large spans in domestic scale, small industrial and office buildings, using timber as the main constructional material. Investigations are currently being carried out with the help of CAD, structural analysis computer software and model testing, into the structural behaviour and spatial qualities of reciprocal frame buildings. The potential of 3-dimensional reciprocal frames for retractable roofs is being examined. Highly insulated timber roof panels, with the beam grillage, and 'breathing wall' systems for the supporting structure are also being explored.
Engineers are familiar with assessing the stability of rectilinear structures.
However, stability is less well understood for plate structures particularly where the plates do not intersect at right angles. As architects will inevitably wish to exploit these opportunities, it is necessary that simple methods are established to describe the geometry of complex hybrid forms, using CAD, and for engineers to assess their structural stability. This area of research is being pursued jointly with the Royal Academy of Fine Arts in Copenhagen. Dr John Chilton Thermal Modelling Established expertise exists in theoretical modelling, monitoring and analysis using micro and mainframe computers. Dr John Whittle Urban Design Urban Design activities include taught and research based qualifications, contract research and consultancy, as extensions of established expertise in this area, serviced by photo and video graphic, model-making and computing facilities.