广州地区建筑水平外遮阳对室内采光影响研究  

Effect of External Horizontal Shading Devices on Daylighting in Guangzhou

作　　者：周荃[1] 杨仕超[1] 

机构地区：[1]广东省建筑科学研究院,广州510500

出　　处：《广东土木与建筑》2011年第6期15-18,共4页Guangdong Architecture Civil Engineering

摘　　要：在介绍广州地区传统建筑的水平外遮阳形式的基础上,结合广州的太阳轨迹和光环境参数分析水平遮阳对太阳直接眩光的遮挡作用,并针对典型房间计算不同出挑长度和反射比的室内采光情况,分析水平遮阳对室内采光系数和均匀度的影响,提出具有导光作用的水平遮阳构造形式,并进行了采光的量化计算。本文的论述证明通过合理的构造设计、尺寸设计和材料选择,水平遮阳可以兼顾遮阳和采光的双重需求。In the paper,traditional shading design in Guangzhou is analyzed.Based on the sun track of Guangzhou,how glare is avoided by shading devices is shown.Daylight factor in a typical room is calculated,according to different length of shading devices and different value of visible reflectance.Effect of external horizontal shading devices on daylight factor and uniformity is analyzed.At last,the external horizontal shading device with a pane that can guide sunlight inside is given.It can be concluded that shading and daylighting will be both satisfied in a good design of external horizontal shading.

关 键 词：水平遮阳 采光系数 均匀度 导光 

分 类 号：TU[建筑科学]