动态采光指标分析与侧窗采光范围

发布时间：2018-04-25 22:26

本文选题：动态采光指标 + 采光系数　；参考：《哈尔滨工业大学学报》2017年10期

【摘要】：为指明动态采光指标的先进性并倡导在建筑采光设计案例中应用动态指标进行分析,首先,通过理论分析说明在评价天然光表现时动态采光指标较之静态指标(采光系数)更为合理;进而,以广州的天气数据为计算条件,基于Daysim动态采光模拟结果,使用DF/DA/UDI指标针对4种不同立面类型进行了采光效果排序并与基于采光系数的排序结果进行比较,结果说明了动态采光指标在方案择优方面的优越性.此外,分析了不同窗墙比、遮阳悬挑尺寸建筑立面的有效采光范围与眩光出现概率,相关结果可纳为设计指导.研究结果表明:采光系数用于评价建筑采光存在不足,推荐在建筑采光分析中使用动态采光指标;将DA指标值不低于DA_300 lx[50%]的范围定义为有效采光区域,该量值可以较好地反映侧窗采光的有效范围.
[Abstract]:In order to point out the advanced nature of dynamic lighting index and advocate the application of dynamic index in building lighting design case, first of all, The theoretical analysis shows that the dynamic lighting index is more reasonable than the static index (lighting coefficient) in evaluating the natural light performance. Furthermore, taking the weather data of Guangzhou as the calculation condition, based on the Daysim dynamic lighting simulation results, The DF/DA/UDI index is used to sort the lighting effect of four different elevation types and the results are compared with those based on the lighting coefficient. The results show the superiority of the dynamic lighting index in the scheme selection. In addition, the effective lighting range and the occurrence probability of glare of different window / wall ratio, shading and cantilever size building facades are analyzed, and the relevant results can be used as the design guide. The results show that there are shortcomings in the application of daylighting coefficient to the evaluation of building lighting, and it is recommended to use dynamic lighting index in building lighting analysis, and to define the range of DA index not lower than DA_300 LX [50%] as an effective lighting area. This value can well reflect the effective range of side window lighting.
【作者单位】：亚热带建筑科学国家重点实验室(华南理工大学);深圳大学建筑与城市规划学院;
【基金】：国家自然科学青年基金(51208205) 亚热带建筑科学国家重点实验室自主课题“华南区光气候下的侧窗采光空间光环境评价”(2015ZC15);亚热带建筑科学国家重点实验室自主课题“天然光环境视觉舒适度评价与建筑动态采光模拟研究”(2017KB11)
【分类号】：TU113.5

【相似文献】