The KREOD (formerly known as Dpod) pavilion, located at the North Greenwich Olympic site, has now been completed – a significant event as it marks the culmination of a challenging design and fabrication process.
KREOD is a sustainable, portable, demountable and multi-functional indoor or outdoor exhibition space that will be installed in multiple locations within London. The project is led by Pavilion Architecture with its organic form inspired by nature, resembling a seed.
KREOD will sits on castors allowing the structure to be moved and rearranged into different forms and spaces to create a versatile event space with practical considerations for transportation, storage, disassembly and reassembly.
The structure, which has taken some time to come to fruition, is made up of three reciprocal timber gridshells that implement a number of geometrical optimisation and fabrication algorithms that have not been previously applied to a real structure. The form is a creative response to the need for a building that can be easily erected and subsequently demounted by hand, uses Kebony timber – a previously untried material – of a given size and limited thickness, and had to be delivered within a strict budget.
Using digital technology to its fullest, KREOD has been delivered in a collaborative manner with each member of the design team understanding the innovative work and challenges of the other contributors and designing accordingly.
KREOD will be launched and unveiled to the media today at its current site, adjacent to the North Greenwich Arena in East London, where it will remain for six weeks before being moved to its next site.
John Harding of the RCD team together with Sam Joyce, Paul Shepherd and Chris Williams of the University of Bath has been selected to present a paper on Thinking Topologically at Early Stage Parametric Design at the Advances in Architectural Geometry conference in Paris, September 27-30.
John Harding’s current EngD topic looks into the inflexibility of parametric modelling software for the early stage of design. By using techniques in genetic programming (GP), a new way of working with parametric models is proposed. The idea was recently published at the Advances in Architectural Geometry Conference in Paris. Abstract:
“Parametric modelling tools have allowed architects and engineers to explore complex geometries with relative ease at the early stage of the design process. Building designs are commonly created by authoring a visual graph representation that generates building geometry in model space. Once a graph is constructed, design exploration can occur by adjusting metric sliders either manually or automatically using optimization algorithms in combination with multiobjective performance criteria. In addition, qualitative aspects such as visual and social concerns may be included in the search process. The authors propose that whilst this way of working has many benefits if the building type is already known, the inflexibility of the graph representation and its top-down method of generation are not well suited to the conceptual design stage where the search space is large and constraints and objectives are often poorly defined. In response, this paper suggests possible ways of liberating parametric modelling tools by allowing changes in the graph topology to occur as well as the metric parameters during building design and optimisation”
A Preprint of the paper can be downloaded here here
With input from several Architectural practices in Denmark we are currently working on an application which models and evaluates alternative commercial tower typologies in real-time, giving instant performance feedback during the early design stages where the most important decisions are made but also when the least amount of time is available.
Evaluation criteria include solar gain, heat loss, structural performance, gross floor area, etc… as well as site specific impacts such as shadow casting of neighbouring buildings. This quantitative performance data (which can be numerically optimised) is then combined with the qualitative aspects of design such as aesthetics, social impact, iconography, etc. when making informed decisions in how to progress the design. Different modes of representation including physical models are also implemented to allow integration with existing tried and tested methods of working.
As the design space is so large at concept design stage, modelling variations in different tower ‘types’ has meant us going beyond traditional optimisation of numerical sliders in parametric models, and as a result this has opened up interesting avenues of research.
The D_pod pavilion took a step closer to reality recently with the completion of the joint testing at Cambridge University. The pavilion has changed a great deal since the first iteration back in 2010. The mesh is hexagonal rather than quadrilateral meaning a different approach has been needed to the engineering of the joints in order to keep them cheap, to use the material on hand and to give them a ‘furniture like’ appearance. RCD specified a reciprocal joint fixed with hidden bolts, which because the Kebony timber was being used for the first time in a load-bearing structure had to be validated by testing. After several tweaks to the detailing we are glad to report that the connections performed as hoped and it’s straight into construction in time for the opening at the Greenwich Olympic site in June.
As part of his role as a part time Structural Engineering tutor at Oxford Brookes School of Architecture, Stephen Melville will be giving a lecture on Thursday 2nd February on the subject ‘Structuring Architecture’. This is a great opportunity to help convey the principles of collaboration and critical thought in the overlapping space of Architectural Design and Engineering Optimisation.