Linking design and simulation using non-manifold topology

Abstract

The aim of this paper is to propose a different method to design buildings by using and enhancing a representational technique called non-manifold topology (NMT). The methodology already exists but is ignored by current building information modelling (BIM) software in favour of a component-based approach. While the topological information embedded within NMT has many uses in the spatial representation of architecture, including building occupancy analysis and structural analysis, the focus in this paper is on the efficacy of NMT in linking design and building performance simulation (BPS). The proposed approach avoids the process of simplifying models produced by BIM software to conduct BPS. In particular, NMT allows for a clear segmentation of a building, unambiguous space boundaries, and perfectly matched surfaces and glazing sub-surfaces. The NMT approach was tested through a software prototype that integrates 3D modelling software and an energy simulation engine.