遮阳条件下的办公建筑日光眩光模拟研究

Daylight Glare Simulation of Office Building under Shading Condition

在办公建筑的使用中,天然采光可以大大降低建筑内部对人工光源的需求,对我国推进的碳达峰及碳中和工作、建筑节能等方面的实操层面具有重要意义。同时,适宜的天然采光能为建筑带来舒适的工作环境,对室内人眼的长时间聚焦有积极作用。但直接的天然采光在特定环境下极易产生眩光,强烈的光强及分布不均给人眼工作带来不适,严重影响建筑使用的光舒适度。

Daylight can significantly reduce the need for artificial lighting sources inside a building and save energy for the building. It is of great significance to the practical operation of carbon peak,carbon neutralization and building energy conservation in China. Meanwhile,suitable daylight can bring a comfortable working environment for the building,which has a positive effect on the long-term focus of the indoor human eyes. However,the occurrence of daylight glare seriously affects the comfort of the building in daylight environment. A representative office in Shenyang is chosen to simulate lighting environment under the application of Ladybug and Honeybee plugins for G rasshopper to automate the calculation of the China Daylight G lare Index( DG I China). G lare influence factors of shading count and shading depth are simulated and analyzed in order to optimize the lighting environment of the office. The light environment simulation shows that shading count and shading depth have a significant impact on the internal glare of office buildings under natural lighting conditions. However,as window height,glass type,indoor layout and other factors all have significant influence on glare generated by daylight,the single effect of shading facilities is not enough to make an accurate decision when determining the scheme to avoid glare,and the uncomfortable light environment under the influence of multiple factors remains to be studied in further study.