高寒地区高层住宅透明围护结构可持续性优化研究——以拉萨为例  

A study on sustainability optimization of transparent envelope structure of high-rise residential buildings in high altitude cold region:A case study of Lhasa

作　　者：刘玮妍 宣湟 LIU Weiyan;XUAN Huang(School of Architecture,Southwest Jiaotong University,Chengdu 610036,China)

机构地区：[1]西南交通大学建筑学院,四川成都610036

出　　处：《四川建筑科学研究》2025年第2期86-95,116,共11页Sichuan Building Science

基　　金：四川省区域创新合作项目(2023YFQ0048)。

摘　　要：拉萨地处高寒地区,其独特的地理气候条件对建筑可持续性提出了更高的要求。建筑可持续包含能源可持续、碳可持续和经济可持续等原则。从透明围护结构入手,以拉萨市堆龙德庆区某高层住宅楼为研究对象,将运行能耗、运行碳排放和运行成本作为3个子目标进行了综合考虑,研究了其透明围护结构的玻璃选择、构造做法和不同窗墙面积比在建筑运行阶段的影响。在优化过程中,进行了嵌套模拟,包含2次正交试验,依次是玻璃性能分析和窗墙面积比分析。观察各模拟数据的规律,得出的结果是:(1)规格为“5+12Ar+5”厚度的充氩气中空low-e玻璃热工性能较好;(2)南、北立面玻璃的选择应有区分,高透low-e玻璃最利于建筑南立面节能减碳,双银low-e玻璃最利于建筑北立面节能减碳;(3)南、北立面窗墙面积比对于能源和碳成本的影响相反,“0.45×0.30”是最佳窗墙面积比搭配;(4)当窗墙面积比为南立面0.45与北立面0.30,搭配南立面窗使用“5 mm高透low-e+12 mm Ar+5 mm高透low-e”玻璃与北立面窗使用“8 mm双银low-e+12 mm Ar+8 mm双银low-e”玻璃时,可实现最低运行能耗和最低运行碳排放。Lhasa is located in a high altitude cold region,its unique geographical and climatic conditions impose higher demands on building sustainability.Building sustainability includes the principles of energy sustainability,carbon sustainability and economic sustainability.Starting from the link of transparent envelope structure,this study took a high-rise residential building in Doilungdeqen District of Lhasa City as the research object.It took operating energy consumption,operational carbon emission and operating cost as three sub-targets for comprehensive consideration.The influence of glass selection,construction method and different window-to-wall area ratios of transparent envelope in building operation stage was studied.In the optimization process,nested simulation was carried out,including two orthogonal experiments,glass performance analysis and window-to-wall area ratio analysis in turn.By observing the law of the simulated data,the final results are as follows.①The thermal performance of the"5+12Ar+5"hollow low-e glass filled with argon gas is better.②The selection of north-south glass should be distinguished,high-transmittance low-e glass is most conducive to energy saving and carbon reduction on the south facade of the building,and double-silver low-e glass is most conducive to energy saving and carbon reduction on the north facade of the building.③The impact of the window-to-wall area ratio of the south to the north on the energy and carbon cost is opposite,"045×030"is the best window-to-wall area ratio.④When the window-to-wall area ratio is 0.45 on the south side and 0.30 on the north side,the use of"5 mm high-transmittance low-e+12 mm Ar+5 mm high-transmittance low-e"glass on the south window and the use of"8 mm double-silver low-e+12 mm Ar+8 mm double-silver low-e"glass on the north window can achieve the lowest operating energy consumption and the lowest operating carbon emission.

关 键 词：高寒地区 高层住宅 透明围护结构 建筑可持续性 

分 类 号：TU92.8[建筑科学—建筑设计及理论]