Lighting Design and Statistical Analysis on Sunshine Underground garage

Abstract In view of the current status of underground garages, the underground sunshine garages are used in the architectural design. After the completion of Tongcheng Yuli community, the questionnaire survey and field measurement were conducted simultaneously. The statistical method was used to analyze the data and the conclusions are as follows: the illumination under skylight is higher. As the distance from the skylight is further away, the speed of illumination decline is first fast and then slow. An exponential distribution occurs. Lane illumination and distance is also exponentially. In the case of unilateral day lighting, the minimum illumination requirement is 301x, the distance limit is 14.5 meters and there are basically 2 columns. On both sides, the distance of the daylighting port is 30 meters, and there are basically four columns around. The comfortable condition are analyzed in the underground garage. This paper will provide reference for the design in the underground sunlight garage.