办公建筑室内自然光环境模拟评估

Simulation and evaluation of the indoor natural light environment of an office building

利用采光分析软件ECOTECT,针对武汉市武昌区某办公建筑进行建模计算分析.结合室外天空照度条件,从采光系数和天光照度两个方面模拟评估该建筑室内光环境.计算结果表明96.47%的室内空间的采光系数大于2%,90.83%的室内空间临界照度不低于100 lx,86.38%的室内空间照度不低于300 lx.采光系数及照度均满足相关规范要求,为绿色建筑室内光环境设计提供参考依据.

This paper presented the natural light environment model of an office building in Wuhan by using ECOTECT,and the natural light environment was calculated and analyzed. The indoor light environment of this building is evaluated in terms of daylight factor and skylight illumination based on the local sky illumination conditions. The results show that the daylight factor for 96.47%of the indoor space is greater than 2%,the critical illumination for 90.83% of the indoor space is not less than 100 lx,and indoor illumination for 86.38% of the indoor space is not less than 300 lx. The results further indicate the daylight factor and illumination can meet the related specification, and can be a reference for the indoor light environment design of green buildings.