北京办公建筑外遮阳效果模拟分析

Simulation Analysis of Shading Effects of an Office Building in Beijing

外遮阳是减少外窗太阳辐射引起的空调负荷的有效措施,对于建筑整体降低能耗方面有着重大的作用。结合北京某办公建筑的不同立面方案,提出垂直构件遮阳、水平构件遮阳、呼吸式幕墙中空百叶遮阳等多种建筑遮阳形式。本文通过Ecotect软件模拟,对比分析了不同遮阳形式的遮阳效果,给出项目不同立面方案遮阳形式的选择建议,对北京市乃至寒冷地区的建筑外遮阳设计优化提供参考依据。

External shading is an effective measure to reduce the air-conditioning load caused by external windows’solar radiation,which plays an important role in reducing the overall energy consumption of the building.Combined with the different facade schemes of an office building in Beijing,a variety of architectural shading forms are proposed,such as vertical component shading,horizontal component shading and hollow louver shading of breathing curtain wall.Through the simulation of Ecotect software,the shading effects of different shading forms were compared and analyzed,and suggestions on shading form selection of different facade schemes of the project are given,which can provide reference for the design optimization of building exterior shading in Beijing and even cold areas.