Research on Multi-objective Optimisation Algorithm for Light and Heat Environment in Underground Atrium Buildings

This paper firstly defines the concepts of underground atrium body shape, climate adaptability and parametric design, analyses the climatic characteristics of cold regions to extract their climatic factors, and responds to the climate with the light and heat environment, extracts the influence factors of the light and heat environment of the underground atrium and the body shape factors of the underground atrium, and constructs the underground atrium body shape design parameter system according to the classification of the body shape factors. Secondly using Ladybug+Honeybee software, a parametric underground atrium performance simulation system is con-structed to simulate the light and heat performance of the underground atrium under the non-air-conditioned state by controlling the design parameters of the underground atrium's body shape, and to explore the role of each body shape parameter in relation to the light and heat environment of the underground atrium respectively. Then, using Ladybug+Honeybee+Wallacei software, we construct a multi-objective optimisation system for under-ground atrium shapes under non-air-conditioned condition with differentiation of light and heat performance, and explore underground atrium shapes suitable for cold regions.