BIM技术在低能耗建筑设计中的协同作用--以建筑方案设计优化为例

The Synergistic Effect of BIM Technology in the Design of Low Energy Building--Taking the Optimization of Building Scheme Design as an Example

文中利用响应面设计方法进行试验设计与分析,结合建筑信息模型及建筑性能模拟软件的耗能指标分析结果,得到建筑耗能设计影响因子的显著程度。研究发现,墙传热系数与窗传热系数对能耗指标影响显著;窗墙比和屋面传热系数的P值大于0.05,说明窗墙比和屋面传热系数对能耗指标影响不显著。此外,窗墙比和屋面传热系数的交叉作用P值小于0.05,说明两者交叉作用对能耗指标影响显著。通过模型的计算优化,得到能耗指标最少的热环境下的模拟参数设定,即窗墙比0.50、墙传热系数0.67、窗传热系系数5.50、屋面传热系数0.73。

Going green is the inevitable trend of the development of Chinese construction industry,and the design stage is the first and most important step to realize the green building.In this paper,response surface design method and building information modeling(BIM)and building performance simulation software are used to analyze the significance level of architectural design influencing factors,which is convenient to guide the parameter selection design with energy saving as the goal.It is found that the heat transfer coefficient of wall and window have significant influence on the energy consumption index.The P values of window-wall ratio and roof heat transfer coefficient are greater than O.05,indicating that the window-wall ratio and roof heat transfer coefficient have no significant effect on energy consumption index.In addition,the P value of the cross effect between the window-wall ratio and the roof heat transfer coefficient is less than O.05,indicating that the cross effect of the two has a significant impact on the energy consumption index.Through the calculation and optimization of the model,the simulation parameter Settings under the thermal environment with the least energy consumption index were obtained:window-wall ratio 0.50,wall heat transfer system,0.67,window heat transfer system,5.50,roof heat transfer system,0.73.